“Spectrophotometric Dertermination of Mesalazine by 8-Hydroxyquinoline and N-(1-naphthyl)ethylenediamine dihydrochloride Reagents in Bulk and Capsule Dosage Forms”, RSCI, vol. 24, no. 1, pp. 146–158, Jan. 2013, doi: 10.33899/rjs.2013.67591.