AbdElrahman Saeed, B. M., & Ahmed Mustafa, M. M. (2022). The Role of Training Courses in Aquiring Skills of using Educational Aids A field study on the teachers of the basic stage in Al-Hasahisa Administrative Unit, Gezira State, Sudan (2021). Journal of Tikrit University for Humanities, 29(5), 370–393. https://doi.org/10.25130/jtuh.29.5.2022.18