Singhalert, A., Sayruksa, D., & Singhalert, R. (2019). A Study on Knowledge and Attitudes of Farmers at Hong Saeng Municipality towards the Use of Organic Fertilizers. Chophayom Journal, 30(3), 117–125. Retrieved from https://so01.tci-thaijo.org/index.php/ejChophayom/article/view/232838