JOHN, Gwamaka; ONYANGO, Daniel; MWAMAKULA, Mwamakula. Effectiveness of School Administrators in Promoting Professionalism in Public Secondary Schools in Mkuranga, Coast Region, Tanzania. Journal of Education and Teacher Training Innovation, [S. l.], v. 4, n. 1, p. 73–82, 2026. DOI: 10.61227/30stej27. Disponível em: https://journal.pusmedia.com/JETTI/article/view/262. Acesso em: 8 jun. 2026.