Fathurrohman, Mohamad Irfan. “SIFAT KARET MENTAH DAN VULKANISAT KARET ALAM DENGAN PENAMBAHAN ASAM AMINO”. Jurnal Penelitian Karet 39, no. 2 (December 21, 2021): 151–164. Accessed July 22, 2024. https://ejournal.puslitkaret.co.id/index.php/jpk/article/view/785.