Safitri, D. A., S. S. Rahardjo, and B. Murti. “Effects of Peer-Based Intervention on Prevention Behavior of Sexually Transmitted Infections and Unwanted Pregnancy in Adolescents: A Meta Analysis”. Journal of Maternal and Child Health, vol. 5, no. 6, Nov. 2020, pp. 693-04, https://thejmch.com/index.php/thejmch/article/view/510.