หงสุวรรณ์ แ. and บุษบงก์ ป. (2018) “ Maha Sarakham Province”., Chophayom Journal, 29(1), pp. 173–184. available at: https://so01.tci-thaijo.org/index.php/ejChophayom/article/view/126455 (accessed: 2 September 2026).