J. Mohammed, Hussain, and Fatma A. Khazaal. “A Sensitive Spectrohotometric Assay for the Determination of Manganese (II) Using Antipyrine Azo As New Reagent”. Journal of Kufa for Chemical Sciences 1, no. 3 (March 26, 2012). Accessed May 16, 2024. https://journal.uokufa.edu.iq/index.php/jkcs/article/view/3445.