E. Fazary, A. and Q. Rajhi, A. 2015. Complexation Equilibria of Vitamin B9, Glycine Oligopeptides with Di- and Trivalent Metal Ions. Asian Journal of Chemistry. 27, 10 (Jun. 2015), 3872–3876. DOI:https://doi.org/10.14233/ajchem.2015.19060.