Napasirth, Pattaya, Chalong Wachirapakorn, Pathcharee Saenjan, and Chalermpon Yuangklang. “Effect of Sulfate-Containing Compounds on Methane Production by Using an In Vitro Gas Production Technique”. Pakistan Journal of Nutrition 12, no. 8 (July 15, 2013): 723–729. Accessed January 20, 2026. https://pjnonline.org/pjn/article/view/1887.