Đinh Tấn Ngọc, Đỗ Văn Dũng, Đỗ Quốc Ấm. Researching and evaluating some new methods to measure engine speed. JTE [Internet]. 2014 Dec. 26 [cited 2026 Apr. 7];9(4):52-6. Available from: https://www.jte.edu.vn/index.php/jte/article/view/558