Paenpong C, Pratoomchai N. Performance evaluation of a small spark-ignited engine with an electromagnetic intake valve . J. Res. Appl. Mech. Eng. [Internet]. 2020 Dec. 22 [cited 2024 Apr. 18];9(1):JRAME-21. Available from: https://ph01.tci-thaijo.org/index.php/jrame/article/view/240996