Gao, H.-W., & Ye., Q.-S. (2010). Investigation of Properties of Trace Zinc Complex Solution with 1-(6-Bromo-2-Benzothiazolylazo)-2 Naphthol. Asian Journal of Chemistry, 12(3), 806–810. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/23064