Chathamalo (Sanakulch, P. T., P. Kantipalo (Intikhotr), and A. P. D. S. Kosolkittiampo. “Science Policy : The Potential of Providing Excellent Welfare Services for Government Organization Leaders”. Journal of Research and Development Institute Rajabhat Maha Sarakham University, vol. 6, no. 2, Dec. 2019, pp. 513-24, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/233218.