Irawan, RM. Bagus, Edi Pujianto, Moh Amin, and Moh Subri. “EFFECT OF NUMBER OF TRANSITION METAL CATALYST CELLS MANGANESE CATALYTIC CONVERTER ON EXHAUST BASIS EMISSION OUTPUT CARBON MONOXIDE MOTOR GASOLINE”. SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin 15, no. 2 (December 1, 2021): 118–122. Accessed August 6, 2025. https://jurnal.umj.ac.id/index.php/sintek/article/view/10369.