Rawangphai S, Topanurakkul U, Maneechod P. A TEACHER DEVELOPMENT MODEL FOR ENHANCING SPEAKING COMMUNICATION SKILLS IN ENGLISH OF STUDENTS AT SANGWANICH UPATHAM MUNICIPAL SCHOOL UNDER MUEANG SAMUTSONGKHRAM MUNICIPALITY. SN Grad J. [internet]. 2024 Jun. 26 [cited 2025 Dec. 10];21(93):57-68. available from: https://so02.tci-thaijo.org/index.php/SNGSJ/article/view/266199