Herinawati, Herinawati, Suryati, Yuli, Osvinarti, Osvinarti, Widyawati, Melyana, AND Iksaruddin, Iksaruddin. " Smartphone-based prenatal attachment education application design improving maternal and fetal attachment to high-risk pregnant mothers at Putri Ayu Health Center Jambi City" Riset Informasi Kesehatan [Online], Volume 11 Number 2 (31 December 2022)