Amelya, Merry, Huthia Andriyana, Better Nababan, and Eka Rusdianto. “Postpartum Contraception in Indonesian Teenager”. KnE Medicine 1, no. 1 (October 4, 2016): 81-88. Accessed January 25, 2021. https://knepublishing.com/index.php/KnE-Medicine/article/view/541.