Herda Bimantara. PENGARUH PERUBAHAN IGNITION TIMING TERHADAP EMISI GAS BUANG PADA MOBIL URBAN KEN AROK BERBAHAN BAKAR ETHANOL E100 : EFFECT OF IGNITION TIMING CHANGES ON EXHAUST EMISSIONS IN KEN AROK URBAN CAR FUELED BY ETHANOL E100 . J-MEEG [Internet]. 2024 May 28 [cited 2025 Sep. 11];3(1):242-7. Available from: http://114.6.41.75/index.php/j-meeg/article/view/3947