Rojkitjakul, T., Uthayamethee, P. U., & Vachirapunyo, P. W. (2020). NEW FARMER : Leadership of Thai Farmers in Thailand 4.0. Journal of MCU Humanities Review, 5(2), 199–215. Retrieved from https://so03.tci-thaijo.org/index.php/human/article/view/219424