WADHWANI, VARSHA, and VISHNU DHARI. “Ultrasonic Characterization of Ferrous Ammonium Sulphate in Aqueous Galactose Solutions”. Asian Journal of Chemistry, vol. 22, no. 2, Mar. 2010, pp. 902-10, https://asianpubs.org/index.php/ajchem/article/view/11202.