Pongpinyopap S, Mungcharoen T. Comparative Study of Green Water Footprint Estimation Methods for Thailand: A Case Study of Cassava-based Ethanol. Environ. Nat. Resour. J. [internet]. 2016 Nov. 17 [cited 2026 Sep. 17];10(2):66-72. available from: https://ph02.tci-thaijo.org/index.php/ennrj/article/view/71271