Manurung, V. A. T., and A. Sofyan. “MENURUNKAN PERSENTASE NUT PECAH STASIUN PRESS 18% DI PT. TUNGGAL PERKASA PLANTATION”. Technologic, vol. 2, no. 2, Dec. 2015, https://technologic.polytechnic.astra.ac.id/index.php/firstjournal/article/view/100.