Marpin, Pajri, Sri Mulyadi, and Sri Handani. “Pengaruh Penambahan Tepung Bulu Ayam Dan Pati Kulit Pisang Terhadap Sifat Mekanik Dan Biodegradabilitas Plastik Campuran Polipropilena Bekas”. Jurnal Fisika Unand 5, no. 3 (July 3, 2016): 214–221. Accessed October 17, 2026. https://jfu.fmipa.unand.ac.id/index.php/jfu/article/view/246.