Sutrisno MZD, Rijanto A, Dyah AI. Analisis Perbandingan Bahan Bakar Jenis Pertalite Dan Pertamax Terhadap Kinerja Motor 4 Langkah. macha [Internet]. 2021Dec.13 [cited 2024May8];3(2):103-11. Available from: http://ejurnal.unim.ac.id/index.php/majamecha/article/view/1307