Mahdi Jreo, A. (2018). Synthesis of The new 2-[6-Nitro-2-benzothiazolylazo]-4-Amino benzoic acid Organic Reagent for Spectrophotometric Determination of Lead (II). Al-Qadisiyah Journal of Pure Science, 20(4), 60 - 71. Retrieved from https://journalsc.qu.edu.iq/index.php/JOPS/article/view/864