แซ่เฮ้ง สุวรรณา. “A Study on Undergraduates Demands for Social Services Activities by the Faculty of Arts, Chulalongkorn University (Academic Year 2021)”. Journal of Social Synergy 13, no. 2 (August 30, 2022): 14–30. Accessed May 8, 2024. https://so04.tci-thaijo.org/index.php/thaijss/article/view/259187.