Ratnawati, Dwi Esti Andriani. DEVELOPING TEACHER PROFESSIONALISM IN THE SCHOOL ENVIRONMENT (A QUALITATIVE CASE STUDY IN 3 STATE JUNIOR HIGH SCHOOLS IN YOGYAKARTA). SJIIPS [Internet]. 2026 Aug. 31 [cited 2026 Sep. 4];15(3):1120-31. Available from: https://ejournal.unibabwi.ac.id/index.php/sosioedukasi/article/view/9404