Saenkumvong, Wanchai, Vasith Teerajetgul, Meechai Khamsa-ard, and Suriya Jathaisong. “Effects of Small Gasoline Engine Adding Pure Oxygen in Air Fuel Mixture”. Engineering and Applied Science Research 33, no. 6 (February 18, 2013): 625–638. accessed September 22, 2026. https://ph01.tci-thaijo.org/index.php/easr/article/view/6023.