M.U. K, A. S, I.U. I, S. A. Effect of Butanol and Camphor Blended with Premium Motor Spirit on Performance and Emission of Spark Ignition Engine. JM [Internet]. 2020 Oct. 11 [cited 2024 May 4];(43). Available from: https://jurnalmekanikal.utm.my/index.php/jurnalmekanikal/article/view/401