Pinondang Hotria Siregar, and Ricard Fredrik Marpaung. “Adolescent Determinant Who Makes Sexual Pre Marriage Relations in Simalungun, Indonesia: Cross-Sectional Study ”. International Journal of Psychosocial Rehabilitation 24, no. 10 (August 3, 2020): 4155–4163. Accessed January 20, 2026. https://psychosocial.com/index.php/ijpr/article/view/9106.