Nurrahma, Herlin Ajeng, et al. “The Association Between Hb Levels in Placenta Previa Patients With Apgar Scores”. Sains Medika: Jurnal Kedokteran Dan Kesehatan, vol. 13, no. 2, Dec. 2022, pp. 50-54, https://doi.org/10.30659/sainsmed.v13i2.26623.