Siswosudarmo, Risanto, et al. “ 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, vol. 8, no. 1, Jan. 2020, pp. 14-18, doi:10.32771/inajog.v8i1.1259.