Srichai, Prathan, and Sombat Tamna. 2025. “Efficiency and Innovation in Liquefied Petroleum Gas (LPG) Conservation for Cooking: An Integrated Analysis”. PNU Journal of Applied Science, Engineering & Technology 4 (1). Narathiwat, Thailand:45-55. https://ph05.tci-thaijo.org/index.php/JASET/article/view/321.