T. Zahra, E. Susanto, and S. Kumorowulan, “Effect of a Combination of Soybean Powder and Rosella Flowers (Hibiscus Sabdariffa) on Changes in Hemoglobin Levels in Women of Childbearing Age”, Health Inf J Penelit, vol. 16, no. 1, p. e1165, Apr. 2024.