Nur Wahyu Hidayat, Umar Ghoni, and Mursalim. “Optimizing Clustering Performance: A Novel Integration of Whale Optimization Algorithm and K-NN Validation in Data Mining Analytics”. JITU : Journal Informatic Technology And Communication 9, no. 1 (May 10, 2025): 20–29. Accessed October 9, 2025. https://ejournal.uby.ac.id/index.php/jitu/article/view/1808.