Junipitoyo, Bambang. “Pengaruh Campuran (35%, 40%, 45% Dan 50) Medium Bioethanol Pada Pertalite Terhadap Emisi Gas Buang Piston Engine 1 Silinder”. Jurnal Penelitian 4, no. 2 (June 17, 2019): 28–34. Accessed April 19, 2025. http://ejournal.poltekbangsby.ac.id/index.php/jurnalpenelitian/article/view/293.