Pangastuti, Nuring, et al. “Urinary Tract Infection As a Risk Factor for Preterm Delivery: A Tertiary Hospital-Based Study: Infeksi Saluran Kemih (ISK) Sebagai Faktor Risiko Persalinan Preterm: Penelitian Berbasis Rumah Sakit Tersier”. Indonesian Journal of Obstetrics and Gynecology, vol. 7, no. 2, Apr. 2019, pp. 105-9, doi:10.32771/inajog.v7i2.667.