Saragih, H. S. and Gultom, L. (2025) “Training and Counselling of Sex Education as a Prevention for Sexual Risk Behaviour in Adolescents: A Quasi-experiment Study”, Jurnal Promkes: The Indonesian Journal of Health Promotion and Health Education, 13(2), pp. 138–146. doi: 10.20473/jpk.V13.I2.2025.138-146.