Phonrueangthong, K., Duangchatom, K. and Phoojomjit, P. 2023. Strategy Development for Educational Resource Management of Secondary Schools Under The secondary Educational Service Area Office Kalasin: Strategy Development for Educational Resource Management of Secondary Schools Under The secondary Educational Service Area Office Kalasin. RATANABUTH JOURNAL. 5, 2 (Aug. 2023), 601–618.