Hongthong, C., Jaiajitsawat, S. and Kritpolwiwattana, S. (2016) “Biogas simulation with mixed gas free on metal cutting”, Engineering and Applied Science Research, 43, pp. 283–286. Available at: https://ph01.tci-thaijo.org/index.php/easr/article/view/70213 (Accessed: 17 May 2024).