Hadtee S, Julsuwan S. A STUDY OF NEEDS FOR INTERNAL SUPERVISION BY USING THE PROFESSIONAL LEARNING COMMUITY FOR EDUCATIONAL OPPORTUNITY EXPANSION SCHOOLS UNDER OFFICE OF THE BACIC EDUCATION COMMISSION IN THE NORTHEASTERN REGION OF THAILAND. JSBA [internet]. 2020 Sep. 15 [cited 2026 Mar. 6];5(9):64-78. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/245107