Chaipakdee B, Sornphet S, Hanrin C. Conditions, Needs and Guidelines for Self and Professional Development of Teachers in Schools Under the Nakhon Phanom Primary Educational Service Area Office 1. edurmu [internet]. 2022 Aug. 25 [cited 2026 Sep. 2];19(2):130-43. available from: https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/258620