Hussain, A.F., Dawood, A.H. and Kadhier, A.F. 2011. New Method of Synthesis of Calix-4-arenes as Analytical Reagent for Spectrophotometric Determination of Iron (III). Al Mustansiriyah Journal of Pharmaceutical Sciences. 10, 2 (Dec. 2011), 19–33. DOI:https://doi.org/10.32947/ajps.v10i2.293.