Srichaiwong, P., อินทรประจบ อ., Chanphong, S., Photisuwanpanya , T., & Phalapol, C. (2021). The Behavior of Farmers’ Safe Vegetables Production in Na Siaw Sub-District, Mueang District, Chaiyaphum Province. Journal of Modern Learning Development, 6(6), 296–307. retrieved from https://so06.tci-thaijo.org/index.php/jomld/article/view/250081