HANDOKO, H. The Principal Strategy In Developing Teacher Professional Competence In Islamic Junior High School Al-Jam’iyatul Washliyah Tembung, Deli Serdang District. International Journal Of Education, Social Studies, And Management (IJESSM), [S. l.], v. 1, n. 2, p. 58–72, 2021. DOI: 10.52121/ijessm.v1i2.31. Disponível em: https://lpppipublishing.com/index.php/ijessm/article/view/31. Acesso em: 3 may. 2024.