Phasitkunlawet, R. “Developing a Reimbursement System for Teaching Allowance of Graduate Programs at Nakhon Pathom Rajabhat University”. Journal of Humanities and Social Sciences Nakhon Pathom Rajabhat University, vol. 13, no. 2, Aug. 2023, pp. 37-49, https://so07.tci-thaijo.org/index.php/HUSO-J/article/view/1857.