Firmansyah, Hanien, and Ayik Mirayanti Mandagi. “Relationship Between Knowledge and Premaretal Sex Attitudes in Adolescents in Kalipuro 3 Public Middle School”. STRADA : Jurnal Ilmiah Kesehatan, vol. 9, no. 1, May 2020, pp. 35-43, doi:10.30994/sjik.v9i1.267.