Soemantri, S., Soedigbia, A. G., Hardiman, I., Hendarto, T., & Widjaja, W. (1981). Ferrous sulfate liquid for the treatment of iron deficiency anemia. Paediatrica Indonesiana, 21(1-2), 21–34. https://doi.org/10.14238/pi21.1-2.1981.21-34