Simanjuntak, Greta Anasthasia, and Mukti Hamjah Harahap. “KARAKTERISASI PLASTIK BIODEGRADABEL BERBAHAN DASAR POLY LACTID ACID DAN PATI BIJI DURIAN”. EINSTEIN (e-Journal) 2, no. 3 (October 1, 2014). Accessed October 12, 2025. https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/5332.