KHAMWICHIT W, SANONGRAJ W, SANONGRAJ S. Study of Environmental Impacts Before and After Using the Organic-Chemical Fertilizer in Rice Paddy Fields. Walailak J Sci & Tech [Internet]. 2011Nov.16 [cited 2024Apr.30];3(1):51-68. Available from: https://wjst.wu.ac.th/index.php/wjst/article/view/149