Rizal, Raissa N., et al. “The Efficacy of Chemotherapy in Advanced-Stage Cervical Cancer on Vitamin A Serum: Efektivitas Kemoterapi Pada Karsinoma Serviks Stadium Lanjut Terhadap Serum Vitamin A”. Indonesian Journal of Obstetrics and Gynecology, vol. 10, no. 2, Apr. 2022, pp. 95-101, doi:10.32771/inajog.v10i2.1458.