Purba, R. B. ., O. L. . Paruntu, I. N. . Ranti, V. . Harikedua, G. . Langi, J. . Sineke, J. M. . Laoh, E. . Pesak, Y. . Tomastola, D. . Robert, and S. Salman. “Beetroot Juice and Red Spinach Juice to Increase Hemoglobin Levels in Anemic Adolescent Girls”. Open Access Macedonian Journal of Medical Sciences, vol. 9, no. E, Sept. 2021, pp. 857-60, doi:10.3889/oamjms.2021.6871.