Boonsong S, Siharak S. DEVELOPING PROFESSIONAL ETHICS OF THE GRADUATE DIPLOMA IN TEACHING PROFESSION STUDENTS WITH THE GROUP INVESTIGATION MODEL IN THE COURSE OF DEVELOPMENT OF SELF ACTUALIZATION FOR TEACHER. JSBA [internet]. 2020 Dec. 20 [cited 2026 Mar. 7];5(12):75-89. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/245944