Pongpinyopap, Shinatiphkorn, and Thumrongrut Mungcharoen. “Comparative Study of Green Water Footprint Estimation Methods for Thailand: A Case Study of Cassava-based Ethanol”. Environment and Natural Resources Journal 10, no. 2 (November 17, 2016): 66–72. accessed September 19, 2026. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/71271.