Alabidi, H. M., A. M. Farhan, and M. M. Al-Rufaie*. “Spectrophotometric Determination of Zn(II) in Pharmaceutical Formulation Using a New Azo Reagent as Derivative of 2-Naphthol”. CURRENT APPLIED SCIENCE AND TECHNOLOGY, vol. 21, no. 1, Aug. 2020, pp. 176-87, https://li01.tci-thaijo.org/index.php/cast/article/view/246512.