N. Nurhayati and B. . Mastiadji, “Overview of Immature Reticulocyte Fraction (IRF) and Red Cell Distribution Width-Coefficient Variation (RDW-CV) in Patients with Hemoglobin Levels Below 8”, Jurnal Ilmiah Penelitian Kesehatan, vol. 4, no. 3, pp. 610–615, Oct. 2025.