แก้วมณีชัย ศ, เพ็งสวัสดิ์ ว. Effective Time Management of School Directors: Causal Factors. J Roi Et [Internet]. 2019 Aug. 30 [cited 2024 Apr. 26];13(2):215-26. Available from: https://so03.tci-thaijo.org/index.php/reru/article/view/183862