Abbas, Naseem, Mohsin Ali Badshah, Muhammad Bilal Awan, and Nida Zahra. 2021. “Performance and Gaseous Emission Investigation of Low Powered Spark Ignition Engine Fueled With Gasoline and Hydroxyl Gas: Hydroxyl Gas-Gasoline Mixture Engine”. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences 55 (1):11-20. http://ppaspk.org/index.php/PPAS-A/article/view/194.