PENGETAHUAN IBU HAMIL TRIMESTER I TENTANG ASAM FOLAT DI BPM SRI REJEKI KARANGANYAR. OVUM : Journal of Midwifery and Health Sciences, [S. l.], v. 2, n. 1, p. 35–44, 2022. DOI: 10.47701/ovum.v2i1.2115. Disponível em: https://ojs.udb.ac.id/ovum/article/view/2115. Acesso em: 8 july. 2026.