Nguyen, Van Tien, and Dang Quoc Tran. “A Study on the Effect of Squish Area on Engine Performance of Single Cylinder Natural Gas Converted Engine”. JST: Engineering And Technology For Sustainable Development 32, no. 2 (April 15, 2022): 32–39. Accessed June 28, 2025. https://jst.vn/index.php/etsd/article/view/296.