@article{
  author = {tirgir, heshmatola, Nikkhah, Mohammad, Saeidian, Narges},
  title = {Providing a practical model for improving the selection and appointment of principals of secondary schools in the country},
  journal = {Educational Administration Research},
  year = {2023},
  volume = {14},
  issue = {54},
  pages = {33-52},
  doi = {},
  url = {https://sanad.iau.ir/fa/Article/1113157}
}