Elfi Zahara 2022. THE RELATIONSHIP OF MOTHER’S KNOWLEDGE WITH THE EVENT OF THE PERSISTENCE OF CHILD IN CLASS II AND III AT SDN 12 KOTA BANDA. DHeJA: Dental Health Journal of Aceh. 1, 1 (Jul. 2022), 108–117. DOI:https://doi.org/10.30867/dheja.v1i1.60.