Saitumlueng E- amorn, Julsuwan S. THE DEVELOPMENT PROGRAM OF ENHANCE TEACHER COMPETENCY ON ENGLISH COMMUNICATION LEARNING MANAGEMENT FOR THE SCHOOL OF WELFARE EDUCATION IN THE NORTHEAST OF THE OFFICE OF SPECIAL EDUCATION BUREAU. AJMBU [internet]. 2023 Dec. 27 [cited 2026 Aug. 31];12(2):157-69. available from: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/270053