Phuangthong N, Lenanant A. Factors Affecting The Efficiency of Administration In Digital Era of Secondary Schools In Phetchaburi Province. JPR [internet]. 2026 Aug. 29 [cited 2026 Sep. 10];9(2):30-45. available from: https://so03.tci-thaijo.org/index.php/JPR/article/view/301308