Sari, N. N., B. Sumargo, D. Siregar, E. Yuliani, C. K. Sari, B. Mahardika, and K. S. Fadya. “CLASSIFICATION OF PRE-MARITAL SEX AMONG ADOLESCENTS USING COST-SENSITIVE WEIGHTED RANDOM FOREST ON IMBALANCED DATA”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 20, no. 4, Aug. 2026, pp. 2693-10, doi:10.30598/barekengvol20iss4pp2693-2710.