-, A. (2014). Factors - Factors Affecting Infertile Couple Age (EFA) Not Using Contraceptives In Hamlet II sub Desa Tanjung Anom Pancur Stone Deli Serdang regency. Jurnal Martenity and Neonatal, 1(2), 93–99. Retrieved from https://e-journal.upp.ac.id/index.php/akbd/article/view/149