SUMARNI, Sumarni; WIDIYATSIH, Tri; EDDY, Syaiful. The Principal’s Role in Improving Teacher’s Professionalism. Journal of Social Work and Science Education, [S. l.], v. 4, n. 2, p. 597–610, 2023. DOI: 10.52690/jswse.v4i2.441. Disponível em: https://ejournal.sembilanpemuda.id/index.php/jswse/article/view/441. Acesso em: 12 jun. 2026.