DAFTAR PUSTAKA
Gaspersz, Vincent. 2005. Production Planning adn Inventory Control
Berdasarkan Pendekatan Sistem Terintegrasi MRP II dan JIT Menuju
Manufakturing 21. Jakarta: PT. Gramedia Pustaka Utama.
Ginting, Rosnani. 2007. Sistem Produksi. Yogyakarta : Graha Ilmu.
Martin, Andre J. 1992. DRP Distribution Resource Planning Distribution
Management’s Most Powerful Tool. New York: Prentice Hall, Inc.
Pujawan, I Nyoman. 2005. Supply Chain Management. Surabaya: Guna Widya
Sinulingga, Sukaria. 2014. Metode Penelitian. Medan: USU Press.