M. A. . Azizul, “Improvement of Combustion Process and Exhaust Emissions with Premixed Charge Compression Ignition ”, japtt, vol. 2, no. 1, pp. 9–25, Jun. 2022, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/japtt/article/view/11848