Judul: Theory of Planned Behavior and Product Competitiveness Towards Halal Food Products Buying Decision: A Comparative Study Between Indonesia and Philippines.
Abstrak: Subculture includes religion and geographic regions are becoming two of factors affecting consumer behavior. The advancement of era also makes businesses compete to create various and unique food from every food substances, which sometimes the halal status is unknown, and it is impacted to Muslim consumers. The aims of this study are to know the characteristics of Muslim consumers in Indonesia and Philippines, the effect Theory Planned Behavior and the effect of the product competitiveness of halal foods to buying decision making of Muslim consumers in both countries. This study used convenience sampling of selected Muslims in Jakarta, Indonesia and Manila, Philippines. As the result, attitude towards behavior is the only significant indirect effect variable among those three variables to buying decision making for Muslim consumers in Jakarta, whereas in Manila, variables of Theory of Planned Behavior are not significant. For the competitiveness variables, consumer expectation is the only variable of competitiveness which is significant indirect effect to buying decision making for Muslim consumers in Jakarta. Whereas, in Manila, product quality, consumer expectation, and price of product are the other variables which are significant indirect effect to buying idecision making for Muslim consumers in Manila. Among those, consumer expectation is the most influenced factor to Muslim in both countries. It was also found that Muslim consumers in Manila is more quality oriented than Muslim in Jakarta.
Keyword: the Theory of Planned Behavior, Muslim, consumer, buying decision, competitiveness, halal food products

Judul: The Impact of Halal Label Perception towards Purchase Decision of Imported Processed Food Products (A Case Study of Generation Z Muslim in Bogor Regency)
Abstrak: Produk makanan olahan impor kini semakin banyak beredar di Indonesia, namun belum semua produk makanan olahan impor sudah memiliki label halal. Hal ini membuat konsumen Muslim perlu meningkatkan selektivitas dalam membeli produk makanan olahan impor yang halal dan layak untuk dikonsumsi. Penelitian ini bertujuan untuk menganalisis pengaruh religiusitas, kelompok acuan, pendapatan, gaya hidup, dan persepsi label halal terhadap keputusan pembelian produk makanan olahan impor pada generasi ZMuslim di Kabupaten Bogor dengan mengambil responden sebanyak 100 responden. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif dan analisis Structural Equation ModelingPartial Least Square (SEM-PLS). Hasil penelitian menunjukkan bahwa kelompok acuan, pendapatan, gaya hidup, dan persepsi label halal berpengaruh positif dan signifikan terhadap keputusan pembelian makanan olahan impor., Nowadays, imported processed food products are increasingly distributed in Indonesia, however not all of them have been halal labelled. Due to this condition, Muslim consumers need to increase selectivity in buying imported processed food products which guaranteed the halal status and suitable for consumption. This study aims to analyze the effect of religiosity, reference group, income, lifestyle, and perceptions of halal labels on purchasing decision of imported processed food products in 100 respondents of Generation Z Muslim who lived at Bogor Regency. This study used descriptive analysis method and data was analyzed using Structural Equation Modeling-Partial Least Square (SEM-PLS). The results of this study indicate that the reference group, income, lifestyle, and perception of the halal label had a positive and significant effect on purchasing decisions of imported processed foods.
Keyword: Generation Z, Halal label, Imported processed foods, Purchasing decisions, SEM-PLS

Judul: Cycle Hamilton pada Graf Lengkap, Graf Regular, dan Graf 2-Connected 4-Regular Berorder Kurang dari Sepuluh
Abstrak: Suatu graf disebut graf Hamilton apabila graf tersebut memuat cycle Hamilton, yaitu cycle yang melewati setiap vertex tepat satu kali. Menentukan keberadaan cycle Hamilton pada suatu graf dapat menggunakan syarat cukup yang berupa teorema-teorema yang telah diperkenalkan sejak tahun 1950-an. Beberapa syarat cukup yang dibahas dalam karya ilmiah ini adalah syarat cukup yang berhubungan dengan graf lengkap dan graf regular. Suatu graf lengkap berorder 𝑛������ ≥ 3 dan graf r-regular berorder 𝑛������ ≤ 2𝑟������ + 1 merupakan graf Hamilton, Karena kedua graf tersebut memuat cycle Hamilton. Selanjutnya, syarat cukup tersebut digunakan untuk menentukan keberadaan cycle Hamilton pada graf 2-connected 4- regular berorder kurang dari 10.
Keyword: graf Hamilton, graf regular, graf lengkap, graf 2-connected 4-regular