Angraeni, E. S., S. Dona, and D. Rahmawati. “Intervensi Selama Kehamilan Untuk Mengurangi Derajat Robekan Perineum Pada Ibu Bersalin: Systematic Review: Interventions During Pregnancy to Reduce the Degree of Perineal Tear in Women in Labor: Systematic Review”. Proceeding Of Sari Mulia University Midwifery National Seminars, vol. 4, no. 1, July 2022, pp. 10-29, https://ocs.unism.ac.id/index.php/PROBID/article/view/868.