Sari, Nilam Novita, Bagus Sumargo, Dania Siregar, Endang Yuliani, Citra Komang Sari, Baihaqy Mahardika, and Khansa Salsabil Fadya. 2026. “CLASSIFICATION OF PRE-MARITAL SEX AMONG ADOLESCENTS USING COST-SENSITIVE WEIGHTED RANDOM FOREST ON IMBALANCED DATA”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan 20 (4), 2693-2710. https://doi.org/10.30598/barekengvol20iss4pp2693-2710.