The Analysis of Matrix Metalloproteinase-9 and Tissue Inhibitor Matrix Metalloproteinase-1 Levels in the Amniochorion Membrane Patients on Premature Rupture of Membranes, Joni, Meidrin, Darwin Eryati, Herlambang Herlambang, and Elliyanti Aisyah , Pharmacognosy Journal, October 2023, Volume 15, Issue 5, p.910-912, (2023)