จงจรวยสกุล วรรณวิมล. “The Employment of the Graduated Students from Rajchapoek College 2012-2013”. Journal of Humanities and Social Sciences, Rajapruk University 2, no. 3 (January 31, 2017): 51–60. Accessed May 18, 2024. https://so03.tci-thaijo.org/index.php/rpu/article/view/112425.