บุญธรรม ธิติมา, and เมืองดี นงเยาว์. “Guidelines for Human Capital Development Improvement in Suratthani Municipality Hotels’ Service Quality”. Journal of Management Sciences Suratthani Rajabhat University 4, no. 2 (December 29, 2017): 57–88. Accessed April 29, 2024. https://so03.tci-thaijo.org/index.php/msj/article/view/116355.