Nattapong Boupen, Amnuay Thongprong. Teachers’ Opinions Concerning the Role of Administrators in Moral School Development Under the Nakhon Nayok Primary Educational Service Area Office. dpssj [internet]. 2022 Dec. 27 [cited 2026 Oct. 3];1(3):15-26. available from: https://so08.tci-thaijo.org/index.php/dpssj/article/view/1335