budin S, Sunaryanto R, Situmorang C. PERBANDINGAN EMISI GAS BUANG ANTARA MOTOR BAHAN BAKAR EMPAT TAK BERBAHAN BAKAR PREMIUM, PERTALITE, DAN PERTAMAX. jtnk [Internet]. 2023 Oct. 2 [cited 2025 Mar. 9];4(2):35-46. Available from: http://ojs-teknik.usni.ac.id/index.php/jtnk/article/view/509