Pongpinyopap, Shinatiphkorn, Worayuy Saibuatrong, Jitti Mungkalasiria, Ruthairat Wisansuwannakorn, Thumrongrut Mungcharoen, and Thongchai Rohitatisha Srinophkun. 2014. “Water Footprint Assessment of Palm Oil Biodiesel Production in Southern Part of Thailand”. Environment and Natural Resources Journal 12 (2). Nakhon Pathom, Thailand:42-46. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/71209.