Polsen, N., Khlibtong, J., Toomhirun, C., & Sirisunyaluck, R. (2020). Extension Workers Development Model for Role in Community Enterprises Extension and Development. Ph.D. In Social Sciences Journal, 10(3), 633–649. Retrieved from https://so05.tci-thaijo.org/index.php/phdssj/article/view/175294