Nguyễn , Tấn Lộc, Văn Long Giang Nguyễn, and Nguyễn Quí Tâm Phan. 2010. “Study-Manufacture the Model of Direct Ignition System”. Journal of Technical Education Science 5 (1):24-28. https://www.jte.edu.vn/index.php/jte/article/view/830.