Mishra, Alok, and Miss H. Mohabey. 2010. “N-Hydroxy-N-Tolyl-N´ -Β-Naphthyl Benzamidine Hydrochloride As a Gravimetric Reagent for the Determination of Copper(II) ”. Asian Journal of Chemistry 14 (2):1099-1100. https://asianpubs.org/index.php/ajchem/article/view/22279.