C. Husna, Muhammad F., Peby M. Lestari, Ahmad K. Syamsuri, and Theodorus. 2020. “Accuracy Tests of Serum Vitamin D and Calcium Levels in Chorioamnionitis: Uji Kesesuaian Kadar Serum Vitamin D Dan Kalsium Pada Korioamnionitis ”. Indonesian Journal of Obstetrics and Gynecology 8 (3):137-41. https://doi.org/10.32771/inajog.v8i3.1113.