Lazo, Pranvera, Alqi Cullaj, and Filip Lubonja. “Spectrophotometric Determination of Hexavalent Chromium After Complex Formation With EDTA Using H-Point Method”. Asian Journal of Chemistry 12, no. 3 (March 30, 2010): 745–752. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/23054.