เชิญทอง อ. (2021) “A Study of Academic Administration problems in Small Schools. Under the Office of Phetchabun Primary Educational Service Area Office 3”, Education journal Faculty of Education, Nakhon Sawan Rajabhat University . Nakhon Sawan,Thailand, 4(3), pp. 1–12. Available at: https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/250054 (Accessed: 3 May 2024).