Klinkhajorn, J. and Rattanarasri, K. (2021) “Problems and Guidelines of Problems Solving on the Community Relationship of School under the Office of Uttaradit Primary Educational Service Area Office 1-2”, Ratchaphruek Journal, 19(1), pp. 30–40. available at: https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/247555 (accessed: 27 August 2026).