Sitompul MPU, Sitompul OS, Situmorang Z. Optimization of Determination Against K-Means Cluster Algorithm using Elbow Creation. J. Teknik Informatika CIT Medicom, [Internet]. 2022 Mar. 30 [cited 2026 May 26];14(1):1-9. Available from: https://medikom.iocspublisher.org/index.php/JTI/article/view/176