“Preferential Solvation of 4-Carboxyl-2, 6-Dinitrophenylazohydroxynaphthalenes in Mixed Hydroxylic Solvents”. Nigerian Journal of Pharmaceutical Research, ج 17, ش 1, آگوست 2021, صص 1-13, https://doi.org/10.4314/njpr.v17i1.1.