Nisa’ F. PENGARUH KARAKTERISTIK HIS DENGAN LAMA PERSALINAN KALA II DI BPS SAHABAT PEREMPUAN GUNUNG ANYAR SURABAYA. Health, sciences [Internet]. 2016Dec.8 [cited 2024Jul.3];9(2). Available from: https://journal2.unusa.ac.id/index.php/JHS/article/view/163