Judul: Pemilihan Pemasok Berdasarkan Kualitas Bahan Baku dalam Supply Chain Network dengan Integer Linear Programming
Abstrak: Supplier is a provider of raw materials needed by company to produce goods and services. Raw materials shipped from supplier to manufactures have different qualities. The quality of raw materials affects purchasing costs for raw materials and reprocessing cost in manufactures. Raw material with high quality does not require reprocessing but its purchasing price is higher than other raw material. Although their purchasing prices are lower, raw materials with medium or low quality still need reprocessing. In this manuscript, supplier selection problem is formulated in term of integer linear programming, where the objective is to maximize the company profit. As an implementation, we considered a Noodle XYZ company with supply chain consisting of 5 potential suppliers, 3 manufactures, 3 warehouses, and 4 customers. The company selects suppliers based on the quality of raw materials offered, cost of hired suppliers, and distribution of the product. The optimal solution is obtained in term of suppliers to be selected and distribution of the product which maximizing profits.
Keyword: raw materials quality option, supplier selection, supply chain

Judul: Analisis Perencanaan Kebutuhan Bahan Baku dan Penetapan Prioritas Pemasok pada PT. Citra Abadi Sejati
Abstrak: Material is one of an important asset for a company which becomes the factor of success production process. This research is to obtain exact technic on making Material Requirement Planning and choosing the appropriate supplier in order that the material can be supplied precisely in quality, quantity and time as well. The technic of fabric requirement planning in the most minimal inventory cost is LFL in Rp. 675.900, EOQ in Rp. 1.029.471, the company technic in Rp. 3.218.700, and LFL + SS as much as Rp. 3.319.199. The technic with the most minimal cost for thread is LFL in Rp.7300, EOQ in Rp. 105.914, the technic used by company in Rp. 1.018.072, and LFL + SS as much as Rp. 2.364.996. Determining the fabric supplier have three criteria, they are quality, price, and lead time. The alternative for each fabric supplier with the best order is in the value of SilverReed in 0,525, Winitex in 0,261 and Far-East in 0,214. Determining the thread supplier have four criteria, they are quality, price, paymenterm and fleksibility. The alternative for each thread supplier rank is in the value of Coats in 0,613, Gunze in 0,264 and Amann in 0,124.
Keyword: EOQ., LFL, supplier priority, material

Judul: Performa kecoa madagaskar (Gromphadorhina portentosa) pada tipe tempat sembunyi yang berbeda
Abstrak: Madagascar cockroaches come from Madagascar Island in the southest of Africa Beach. This cockroaches is a giant cockroaches in the world and as big as a giant beetle that called as "giant cockroaches". Madagascar cockroaches is a giant cockroaches and have a different character with another cockroaches, that is big size and types that it make it looks like beetle, fizz, doesn't bite, doesn't have wings and outdorless so that these cockroaches harmless for human and can be keep as pets that quite popular all over the world because of it's unique.
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