Piampuechana N. GUIDELINES FOR THE PROMOTION OF BEING PROFESSIONAL LEARNING COMMUNITY OF SCHOOLS UNDERKHONKAEN PRIMARY EDUCATIONAL SERVICE AREA OFFICE 1: -. JBER [internet]. 2021 Aug. 31 [cited 2026 Oct. 7];7(2):16-32. available from: https://so06.tci-thaijo.org/index.php/jber/article/view/249193