"An Analytical Framework for Assessing the Effect of Income from Non-Timber Forest Products on Poverty Alleviation in Savannah Region, Sudan". University of Khartoum Journal of Agricultural Sciences 21, no. 1 (مارس 28, 2023). تاريخ الوصول مايو 25, 2026. https://onlinejournals.uofk.edu/uofkjas/article/view/1861.