Artika KD, Imron Musthofa, Isworo H, Syahyuniar R, Fahriansyah R. THE INFLUENCE OF SPARK AND FUEL VARIATIONS ON ENGINE PERFORMANCE OF 135 CC TWO-WHEEL VEHICLES. Elemen [Internet]. 2023 Jun. 28 [cited 2024 Nov. 15];10(1):01-7. Available from: //je.politala.ac.id/index.php/JE/article/view/222