Qader, Sammer A., and Ayad R. Abbas. “Dual-Stage Social Friend Recommendation System Based on User Interests”. Iraqi Journal of Science 61, no. 7 (July 29, 2020): 1759–1772. Accessed January 8, 2026. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/1596.