Widyaning, Pande Putu Firsta, et al. “Diagnostic Accuracy of IGFBP-1 (ACTIM-PROM) Versus the Nitrazine Test for Preterm Premature Rupture of Membranes”. Indonesian Journal of Obstetrics and Gynecology, vol. 14, no. 3, Sept. 2026, doi:10.32771/inajog.v14i3.2497.