“The Relationship Between Protein, Iron, Vitamin C and Vitamin B12 Intake and The Incidence of Anemia”. JURNAL PROTEKSI KESEHATAN 13, no. 2 (Desember 31, 2024): 155–163. Diakses Januari 17, 2026. https://jurnal.pkr.ac.id/index.php/JPK/article/view/898.