Khuntong, S. “The Department Guideline for Education Effectiveness of School Under Lamphun Education Service Area Office 2”. Rajamangala University of Technology Tawan-ok Social Science Journal, vol. 10, no. 1, June 2021, pp. 132-41, https://so05.tci-thaijo.org/index.php/SocialJournal2rmutto/article/view/287465.