Boualaoui, Bouchra, Ahmed Zellou, and Mouna Berquedich. “Knowledge Graph-Based Recommender Systems to Mitigate Data Sparsity: A Systematic Literature Review”. International Journal of Interactive Mobile Technologies (iJIM) 19, no. 03 (February 12, 2025): pp. 115–140. Accessed May 6, 2026. https://online-journals.org/index.php/i-jim/article/view/49427.