Wongchaleekul T. RESEARCH ARTICLE DEVELOPING PROFESSIONAL LEARNING COMMUNITY (PLC) TO ACTIVE LEARNING MANAGEMENT OF TEACHERS IN SCHOOLS OF SECONDARY EDUCATIONAL SERVICE AREA OFFICE PHAYAO. JSC [internet]. 2023 Apr. 30 [cited 2026 Sep. 23];7(4):370-88. available from: https://so06.tci-thaijo.org/index.php/JSC/article/view/263264