Mehra, M.C., and A. Easter. “Colorimetric Determination of Titanium As Peroxomethylenediaminetetracarboxylate”. Asian Journal of Chemistry 9, no. 4 (March 30, 2010): 819–823. Accessed July 24, 2024. https://asianpubs.org/index.php/ajchem/article/view/23971.