Hussain Bokhari, T. et al. 2015. Synthesis, Characterization and Biological Activities of 2-[(Methyl sulfonyl)]amino Benzoic Acid Derivatives and Their Metal Complexes. Asian Journal of Chemistry. 27, 4 (Feb. 2015), 1326–1330. DOI:https://doi.org/10.14233/ajchem.2015.17807.