สุนทรพรพันธ์ อ. The Study of Academic Administration Problems in Small Schools under Nakhon Sawan Primary Educational Service Area Office 1. edunsrujournal [Internet]. 2021 Apr. 29 [cited 2024 May 19];4(1):8-18. Available from: https://so02.tci-thaijo.org/index.php/edunsrujo/article/view/253749