Khuana, K., A. Boontongtherng, and A. Rittidet. “The Livelihood Curriculum Development for Enhancing Agricultural Worker in Self-Reliance”. Journal of Research and Development Institute Rajabhat Maha Sarakham University, vol. 2, no. 2, July 2015, pp. 37-47, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/211705.