Siswosudarmo, R. et al. 2020. CuT 380A IUD Inserted by R-Inserter and Ring Forceps during Postpartum Period A Randomized Clinical Trial, Twelve Months Follow Up: IUD CuT380A yang Dipasang dengan R-inserter dan Klem Cincin pada Masa Pascasalin Uji Klinis secara Random, Pengamatan Dua Belas Bulan. Indonesian Journal of Obstetrics and Gynecology. 8, 1 (Jan. 2020), 14–18. DOI:https://doi.org/10.32771/inajog.v8i1.1259.