Shinatiphkorn Pongpinyopap และ Thumrongrut Mungcharoen. (2012) Comparative Study of Green Water Footprint Estimation Methods for Thailand A Case Study of Cassava-based Ethanol. <i>Environment and Natural Resources Journal</i>, <i>10</i>(2), 66.Shinatiphkorn Pongpinyopap และ 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 (2012):66.Shinatiphkorn Pongpinyopap และ Thumrongrut Mungcharoen. Comparative Study of Green Water Footprint Estimation Methods for Thailand A Case Study of Cassava-based Ethanol. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์:ม.ป.ท. 2012.