Comparative Study of Combustible Species for 4-stroke Otto Cycle Combustion Motor and 6-stroke MUB-2 Cycle Combustion Motor with Fuel Pertamax: Studi Komparasi Kadar Combustible Species Motor Bakar 4 tak Siklus Otto dan Motor Bakar 6 tak Siklus MUB-2 Berbahanbakar Pertamax. PELS [Internet]. 2021 July 14 [cited 2026 Oct. 29];1(2). Available from: https://pels.umsida.ac.id/index.php/PELS/article/view/1013