Eti Herawati, Rukmaini and Rosmawaty Lubis (2025) “The Effect of Pre-Pregnancy Classes on Hemoglobin Levels in Prospective Brides and Grooms in the Ciruas Community Health Center Work Area, Serang Regency, Banten Province”, International Health Sciences Journal, 3(1), pp. 33–53. doi: 10.61777/ihsj.v3i1.87.