Putongjal, V., Juntachum, N., & Sujaree, T. (2021). The Development of Learning Model of Beef Cattle Farmer Groups to Increase Sustainable Productivity in Kalasin Province. Journal of Education Rajabhat Maha Sarakham University, 18(2), 75–84. Retrieved from https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/252437