Rasyid , Randika Dwi Maulana, and ZK Abdurahman Baizal. 2022. “Music Recommender System Using K-Nearest Neighbor and Particle Swarm Optimization”. Indonesian Journal on Computing (Indo-JC) 7 (2):45-52. https://doi.org/10.34818/INDOJC.2022.7.2.649.