Efektifitas Upright Position dan Sim Position Terhadap Lamanya Persalinan Kala I Fase Aktif pada Primigravida. Cendekia Medika: Jurnal Stikes Al-Ma`arif Baturaja, [S. l.], v. 6, n. 1, p. 1–10, 2021. DOI: 10.52235/cendekiamedika.v6i1.78. Disponível em: https://jurnal.stikesalmaarif.ac.id/index.php/cendekia_medika/article/view/78. Acesso em: 12 aug. 2026.