Sondawale, P.J., and M.L. Narwade. “Influence of Dielectric Constants of Methanol-Water Mixtures on Formation Constants of Cu(II)-Glycyl-Glycyl-Glycine Complexes ”. Asian Journal of Chemistry, vol. 9, no. 3, Mar. 2010, pp. 479-82, https://asianpubs.org/index.php/ajchem/article/view/23904.