F. Y. Arini, P. Pongthanoo, K. M. Salsabila, M. Raihan, and N. H. Muzakki, “Optimizing K-Nearest Neighbor Using Ant Colony Optimization for Heart Disease Classification”, Data Science: J. of Computing and Appl. Informatics, vol. 10, no. 1, pp. 66–76, Jan. 2026.