“Produksi Bahan Bakar Cair Dari Limbah Plastik Polypropylene (PP) Metode Pirolisis”. Journal of Chemical Process Engineering 6, no. 1 (May 30, 2021): 18–23. Accessed August 26, 2025. https://jurnal.fti.umi.ac.id/index.php/JCPE/article/view/823.