Extensiveness of Problem-Solving Skills by Heads of Schools on Enhancing Teachers’ Job Performance In Public Secondary Schools fo Siha District, Tanzania. International Journal of Scientific Research and Management (IJSRM), [S. l.], v. 13, n. 09, p. 4324–4338, 2025. DOI: 10.18535/ijsrm/v13i09.el05. Disponível em: https://ijsrm.net/index.php/ijsrm/article/view/6649. Acesso em: 13 sep. 2025.