Fonhakeaw, A. (2023). Cost of Organic Fertilizer Production of The Community Fertilizer Producers at Ban San Kang Pla, Sai Moon Sub-District, San Kamphaeng District Chiang Mai Province. RMUTL Journal of Socially Engaged Scholarship, 7(1). retrieved from https://so07.tci-thaijo.org/index.php/JsesRMUTL/article/view/2018