Muliati, Tuty, et al. “ Vaginal Microbial Patterns and Matrix Metalloproteinase-9 Levels in Relation to Premature Rupture of Membranes”. Indonesian Journal of Obstetrics and Gynecology, vol. 13, no. 3, July 2025, pp. 189-95, doi:10.32771/inajog.v13i3.2741.