The Prenatal Yoga on Perineal Rupture and Duration of Stage II Budi Rahayu (1) , Nur Rahmawati Solihah (1) (1) Program Studi Kebidanan, Universitas Jenderal Achmad Yani Yogyakarta, Indonesia, ID Abstract : 409 PDF & HTML : 444 35-42 PDF - en DOI