Zainab Qahtan Mohammed Abass, Mustafa Mohammed Najm. “A Novel Recommender System Using Trust Based K-Mean Method”. International Journal of Advanced Science and Technology 29, no. 3 (March 30, 2020): 15130 -. Accessed May 2, 2026. http://sersc.org/journals/index.php/IJAST/article/view/32251.