HUBUNGAN POSISI BERSALIN DENGAN RUPTUR PERINEUM DI BIDAN PRAKTEK MANDIRI (BPM) KASIYATI SUKOHARJO. infokes [Internet]. 2015 Dec. 3 [cited 2026 Sept. 21];4(1). Available from: https://ojs.udb.ac.id/infokes/article/view/79