Bemis, Restina, Novesar Jamarun, and Syukri Arief. “PENGOLAHAN LIMBAH POLIPROPILEN MENJADI BAHAN BAKAR CAIR MELALUI METODE PIROLISIS”. Jurnal Riset Kimia 5, no. 2 (March 19, 2012): 158. Accessed April 29, 2024. http://jrk.fmipa.unand.ac.id/index.php/jrk/article/view/217.