The Role of Head of Public Secondary Schools in Providing Professional Development to Enhance Teacher Job Satisfaction in Arumeru District, Tanzania. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 13, n. 10, 2025. DOI: 10.18535/ijsrm/v13i10.el01. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/6670. Acesso em: 3 oct. 2025.