SITOHANG, T.; GANDA AGUSTINA SIMBOLON; ELNY LORENSI SILALAHI. HUBUNGAN UMUR DAN PARITAS DENGAN LAMA KALA I PERSALINAN . Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist), [S. l.], v. 20, n. 3, p. 223–227, 2025. DOI: 10.36911/pannmed.v20i3.2409. Disponível em: https://ojs.poltekkes-medan.ac.id/pannmed/article/view/2409. Acesso em: 23 feb. 2026.