Irawan, R.B., Pujianto, E., Amin, M. and Subri, M. 2021. 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, 2 (Dec. 2021), 118–122. DOI:https://doi.org/10.24853/sintek.15.2.118-122.