Jaikhang, Jirayu, Achara Niyamabha, and Sudarat Sarnswang. “Guidelines for Academic Administration of Educational Institutions Using Dual Educational System in Bangkok Metropolis”. Rajapark Journal 15, no. 38 (February 20, 2021): 137–152. Accessed May 6, 2024. https://so05.tci-thaijo.org/index.php/RJPJ/article/view/248170.