Eli, Khadijah Nasution, S. and Santosa, H. (2024) “INFLUENCE OF HEALTH SERVICES AND CHARACTERISTICS ON THE UTILIZATION OF POSTPARTUM FAMILY PLANNING IN SERDANG BEDAGAI DISTRICT”, International Journal of Health, Education & Social (IJHES), 7(8), pp. 21-40. doi: 10.1234/ijhes.v7i7.341.