Rafah N. AL-Farhan, B. and A . AL-Ajeeli, S. (2021) “The relationship of some personal and functional variables to the level of the usage of extension methods by agricultural extension workers in Salah al-Din Governorate”, College of Basic Education Research Journal, 17(2), pp. 1513–1531. doi: 10.33899/berj.2021.168555.