Shamsuddin, Siti Mariyam, Anazida Zainal, and Norfadzila Mohd Yusof. “Multilevel Kohonen Network Learning for Clustering Problems”. Journal of Information and Communication Technology 7 (April 7, 2008): 1–25. Accessed September 26, 2026. https://e-journal.uum.edu.my/index.php/jict/article/view/8075.