Lingga, Rugun Togianur, and Risdiana Melinda Naibaho. “The Influence of Intrinsic and Extrinsic Factors on the Participation of Women in Fertile Age Couples (PUS) in the Asamasetat Visualization (IVA) Inspection Program at the Sigalingging Health Center, Parbuluan District, Dairi Regency in 2015”. Science Midwifery 9, no. 1, Oktober (October 31, 2020): 201–208. Accessed April 17, 2026. https://midwifery.iocspublisher.org/index.php/midwifery/article/view/76.