Bani Attia, Alia Atiwi Ali. 2021. “The Difficulties That Face Schools’ Principals through Working on a Safe and Healthy Environment at Al Rusaifa Directorate of Education”. Journal of Tikrit University for Humanities 28 (12, 1):409-43. https://doi.org/10.25130/jtuh.28.12.1.2021.20.