Abdul Majeed Khorsheed Ahmed et al. 2022. Spectrophotometric Determination of Lisinopril Drug by Oxidative Coupling Reaction with 4-aminonaphthalene-1- sulfonic acid Reagent. Tikrit Journal of Pure Science. 26, 1 (Dec. 2022), 53–59. DOI:https://doi.org/10.25130/tjps.v26i1.98.