Sukarsa, Rizkar A., et al. “Effect of Vitamin D3 Supplementation on Levator Ani Muscle Strength in Primipara Pregnancy With Post-Partum Vitamin D3 Deficiency : Efek Suplementasi Vitamin D Pada Kekuatan Otot Levator Ani Pada Kehamilan Primipara Dengan Defi Siensi Vitamin D3 Pascapersalinan”. Indonesian Journal of Obstetrics and Gynecology, vol. 8, no. 4, Oct. 2020, pp. 231-6, doi:10.32771/inajog.v8i4.1063.