Tuffahati Zalfa, A. M. A. . Irawan, Z. . Umami, L. A. . Rahmawati, and A. M. . Yusuf, “Relationship Between Energy, Protein, Iron, and Calcium Intake with Hemoglobin Levels of Pregnant Women”, J. Health Nutr. Res, vol. 3, no. 3, pp. 177–184, Dec. 2024.