Judul: Marketing Mix Analysis of Agroforestry Products from KTH Satria Mandiri Farmers in Cianjur, West Java
Abstrak: Keterbatasan akses para produsen dan konsumen terhadap informasi, kurangnya keahlian, modal dan keinginan untuk memperdalam ilmu pemasaran menjadi permasalahan utama agroforestri di Indonesia. Mewujudkan sistem pemasaran yang baik memerlukan strategi yang tepat. Strategi pemasaran dilaksanakan dengan konsep bauran pemasaran atau marketing mix yang merupakan kumpulan variabel produk, harga, saluran distribusi, dan promosi. Bauran pemasaran digunakan untuk memasarkan produk atau jasa yang dikendalikan oleh pihak internal namun dipengaruhi faktor eksternal. Penelitian ini bertujuan mengidentifikasi empat variabel konsep bauran pemasaran dan hubungannya terhadap proses penjualan agroforestri serta merumuskan rekomendasi strategi untuk petani meningkatkan kinerja pemasarannya. Metode penelitian yang digunakan adalah pendekatan kualitatif dengan teknik wawancara. Hasil penelitian menunjukkan empat variabel konsep bauran pemasaran memiliki hubungan yang signifikan dan berkesinambungan terhadap proses penjualan produk agroforestri. Produk yang berkualitas tinggi, harga yang kompetitif, dan tidak diperlukannya pendistribusian dan promosi produk secara khusus oleh masing-masing petani telah memberikan hasil yang memuaskan bagi semua pihak. Rekomendasi strategi pemasaran terdiri dari empat strategi berdasarkan faktor internal dan eksternal yang direkomendasikan untuk jangka pendek dan jangka panjang. Diversifikasi tanaman, efisiensi biaya pemeliharaan, dan penguatan fungsi KTH merupakan strategi yang dapat dilakukan petani dalam jangka pendek. Peningkatan produksi, diversifikasi pasar, kerja sama dengan mitra-mitra lain, promosi efektif, dan perluasan jaringan pemasaran melalui marketplace terpusat dapat meningkatkan penjualan produk merupakan strategi jangka panjang untuk petani., Limited access for producers and consumers to information, lack of expertise, capital and the desire to deepen marketing knowledge are the main problems with agroforestry in Indonesia. Creating a good marketing system requires the right strategy. The marketing strategy is implemented with the marketing mix concept, which is a collection of product, price, distribution channel and promotion variables. The marketing mix is used to market products or services that are controlled by internal parties but influenced by external factors. This research aims to identify four variables of the marketing mix concept and their relationship to the agroforestry sales process and formulate strategic recommendations for farmers to improve their marketing performance. The research method used is a qualitative approach with interview techniques. The research results show that four variables of the marketing mix concept have a significant and sustainable relationship with the sales process of agroforestry products. High quality products, competitive prices, and no need for special product distribution and promotion by each farmer have provided satisfactory results for all parties. Marketing strategy recommendations consist of four strategies based on internal and external factors that are recommended for the short term and long term. Crop diversification, efficient maintenance costs, and strengthening the function of KTH are strategies that farmers can implement in the short term. Increasing production, diversifying markets, collaborating with other partners, effective promotions, and expanding marketing networks through centralized marketplaces can increase product sales, which is a long-term strategy for farmers.
Keyword: kopi, alpukat, aren, kapulaga

Judul: Social Forestry Business Development (Study Case of  LMDH Sasaka Patengan at KPH South Bandung)
Abstrak: The formation of KUPS in social forestry programs is expected to be able to increase business capacity to farmer welfare. This study aims to analyze the management and social forestry business development carried out by members of LMDH Sasaka Patengan. The method used is descriptive statistical analysis with 50 LMDH members and 17 marketing agencies as respondents. The planting pattern is done in agroforestry with a combination of eucalyptus, pine, coffee, avocado, orange, hot chili and Dutch eggplant. The results of the research, business management carried out includes land preparation, seed procurement, planting, maintenance, harvesting, and marketing. In product processing, there is still potential to develop business in commodities other than coffee, those are avocados, oranges, hot chilies and Dutch eggplant into high-value products. The high production potential of farming management needs to be balanced with an efficient marketing system as a strategy in developing the business. An efficient marketing channel to market the products is channel 2 (farmers – collectors – retailers – consumers) with a marketing margin total and marketing costs total which is lower as well as the value of farmer's share and a higher profit to cost ratio from channel 1 (farmers – collectors - wholesalers – retailers – consumers)., Pembentukan KUPS dalam program perhutanan sosial diharap mampu meningkatkan kapasitas usaha demi kesejahteraan petani. Penelitian ini bertujuan menganalisis pengelolaan dan pengembangan usaha perhutanan sosial yang dilakukan anggota LMDH Sasaka Patengan. Metode yang digunakan yaitu analisis statistik deskriptif dengan responden 50 anggota LMDH dan 17 lembaga pemasaran. Pola penanaman dilakukan secara agroforestri dengan kombinasi antara kayu putih, pinus, kopi, alpukat, jeruk, cabai gendot dan terong kori. Berdasarkan hasil penelitian, pengelolaannya meliputi kegiatan penyiapan lahan, pengadaan bibit, penanaman, pemeliharaan, pemanenan, dan pemasaran. Dalam pengelolaan masih ada potensi mengembangkan usaha pada komoditas selain kopi, yaitu alpukat, jeruk, cabai gendot dan terong kori menjadi produk bernilai tinggi. Potensi produksi yang tinggi perlu diimbangi dengan sistem pemasaran yang efisien sebagai strategi mengembangkan usaha. Saluran pemasaran yang efisien untuk memasarkan seluruh komoditas adalah saluran pemasaran 2 (petani – pedagang pengumpul – pedagang eceran – konsumen) dengan total marjin pemasaran dan total biaya pemasaran lebih rendah serta nilai farmer’s share dan rasio keuntungan terhadap biaya lebih besar dari saluran pemasaran 1 (petani – pedagang pengumpul – pedagang besar – pedagang eceran – konsumen).
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Judul: Dynamical System of Hepatitis B in Three Groups with Vaccination
Abstrak: The aim of this study is to modify the hepatitis B transmission model in three age groups involving vaccination from the model conducted by Zhoe and Zhang.The method used is to analyze the stability of the fixed point and its basic reproduction number (R_0). Performed stability analysis and numerical simulation to see population dynamics. Next, a sensitivity analysis of the parameters was carried out to see its effect on R_0. From the analysis obtained two fixed points, namely non-endemic and endemic fixed points. Non-endemic fixed points are locally asymptotically stable if R_0 <1 Meanwhile, the endemic fixed point is locally asymptotically stable if R_0 > 1. Hepatitis vaccination affects the number of susceptible population, because the more successful the vaccination, the smaller the number of susceptible populations so that the smaller the population will be infected.
Keyword: Dynamic, Hepatitis B, Vaccine, Mathematical model