Promsen W, Chaiwong K, Thamasangkul O, Soisuwan T. An Analysis of Financial and Social Returns from Safe Agricultural Products Production, Chiang Rai Municipality, Chiang Rai Province. ecbajournal [internet]. 2024 Oct. 30 [cited 2026 Sep. 11];16(4):81-100. available from: https://so01.tci-thaijo.org/index.php/ecbatsu/article/view/267472