P. A. Jusia, A. . Rahim, H. Yani, and J. Jasmir, “Improving Performance of KNN and C4.5 using Particle Swarm Optimization in Classification of Heart Diseases”, J. RESTI (Rekayasa Sist. Teknol. Inf.) , vol. 8, no. 3, pp. 333–339, Jun. 2024, doi: 10.29207/resti.v8i3.5710.