P.Sumathi, S.Manimekalai, V.Kathiresan, and S.Manimekalai, V.Kathiresan, P.Sumathi,. “Recommendation Diversity Using Optimization Techniques and Ranking Method”. International Journal of Engineering and Computer Science 2, no. 09 (September 30, 2013). Accessed November 23, 2024. http://ijecs.in/index.php/ijecs/article/view/1876.