@article{art6649,
  title = {Extensiveness of Problem-Solving Skills by Heads of Schools on Enhancing Teachers’ Job Performance In Public Secondary Schools fo Siha District, Tanzania},
  doi = {10.18535/ijsrm/v13i09.el05},
  url = {https://www.ijsrm.net/index.php/ijecs/article/view/6649}
}