Angin, Sonadi Perangin, Evitha Evitha, and Marto Sihombing. “CLUSTERING DATA ON UNDERAGE MARRIAGE USING THE CLUSTERING METHOD”. Journal of Mathematics and Technology (MATECH) 3, no. 2 (September 19, 2024): 195–200. Accessed August 1, 2025. http://journal.binainternusa.org/index.php/matech/article/view/179.