M. F. C. Husna, P. M. . Lestari, A. K. . Syamsuri, and Theodorus, “Accuracy Tests of Serum Vitamin D and Calcium Levels in Chorioamnionitis: Uji Kesesuaian Kadar Serum Vitamin D dan Kalsium pada Korioamnionitis ”, Indones J Obstet Gynecol, vol. 8, no. 3, pp. 137–141, Jul. 2020.