Siregar, S., Siregar, R.D. and Batubara, N.S. 2023. GAMBARAN PENGETAHUAN IBU HAMIL PRIMIGRAVIDA TENTANG NYERI PERSALINAN KALA I. Jurnal Kesehatan Ilmiah Indonesia / Indonesian Health Scientific Journal. 8, 1 (Jun. 2023), 170–176. DOI:https://doi.org/10.51933/health.v8i1.1041.