Arfianda, D., B. Wicaksono, K. E. Gumilar, and A. Andrianto. “Characteristics of Peripartum Cardiomyopathy (PPCM) Pregnancy and Preeclampsia in Dr Soetomo Hospital, Surabaya, Indonesia, 2014-2016”. Majalah Obstetri & Ginekologi, vol. 27, no. 1, May 2019, pp. 40-44, doi:10.20473/mog.V27I12019.40-44.