Riduan, A., N. Tamaldin, A. Yamin, and A. Sudrajat. “ENGINE PERFORMANCE COMPARISON BETWEEN VARIOUS RON97 GASOLINE BRANDS AVAILABLE IN MALAYSIAN MARKET”. Journal of Advanced Manufacturing Technology (JAMT), Vol. 13, no. 2(2), Dec. 2019, https://jamt.utem.edu.my/jamt/article/view/5728.