Cahyawati, Safitri Putri, Mohammad Hakimi, and Detty Siti Nurdiati. 2021. “Relationship Between Unintended Pregnancy and the First Antenatal Care Visit”. Berita Kedokteran Masyarakat 37 (04). https://journal.ugm.ac.id/v3/BKM/article/view/21887.