RAJAVEL, R., P. JAYASEELAN, and S. PRASAD. “Spectrophotometric Determination of Copper(II) in Natural Waters and High Purity Thermal Boiler Water”. Asian Journal of Chemistry 21, no. 9 (March 30, 2010): 7054–7062. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/12181.