FITRI, Nina; GUMANTI, Olivia Putri. PERBANDINGAN POSISI TEGAK (UPRIGHT) DAN ACTIVE BIRTH TERHADAP LAMANYA KALA I PERSALINAN PADA IBU PRIMIPARA. Maternal Child Health Care, [S. l.], v. 1, n. 2, p. 94–103, 2022. DOI: 10.32883/mchc.v1i2.1608. Disponível em: https://ojs.ufdk.ac.id/index.php/MCHC/article/view/1608. Acesso em: 19 mar. 2026.