RAMDAN USULU; RIDHA HAFID; SARTIKA. The Relationship of Reproductive Health Education from Teachers and Parents with Adolescents’ Attitudes to Free Sex at SMA Negeri 1 Tapa . International Journal of Health, Economics, and Social Sciences (IJHESS), v. 8, n. 3, p. 2316~2326, 2 Jul. 2026.