Affandi E, Harahap B, Harahap S. Application of the K-Means Clustering Algorithm to Categorize Pregnant Women’s Knowledge and Attitudes Towards Smoking During Pregnancy. JOTECHCOM. 2026;3(3):282-286. Accessed August 20, 2026. https://journal.technolabs.co.id/index.php/jotechcom/article/view/108