R. B. Trianto, M. A. Muin, and C. Vikasari, “Optimized K-Means Clustering for Web Server Anomaly Detection Using Elbow Method and Security-Rule Enhancements”, journalisi, vol. 7, no. 4, pp. 3601–3625, Dec. 2025, doi: 10.63158/journalisi.v7i4.1391.