Janthong, K., & Duangchatom, K. (2023). The Development Guideline for Moral and Ethics of Students Schools under Surin Primary Educational Service Area Office 3: The Development Guideline for Moral and Ethics of Students Schools under Surin Primary Educational Service Area Office 3. RATANABUTH JOURNAL, 5(1), 398–411. retrieved from https://so07.tci-thaijo.org/index.php/rtnb/article/view/2689