ALKAFF, T. R., T. N.S. HARTINI, and M. HAKIMI. “Hubungan Variasi Musim Dengan Kejadian Preeklampsia Di RSUP Dr. Sardjito, Yogyakarta, 1999-2003”. Indonesian Journal of Obstetrics and Gynecology 32, no. 3 (October 14, 2016). Accessed February 25, 2026. https://www.inajog.com/index.php/journal/article/view/160.