Y.-F. Win, S.-G. Teoh, S.-T. Ha, S.-H. Wai, and E. Yousif, “Synthesis and Characterization of Dibutyltin(IV) and Triphenyltin(IV) Complexes Derivatives of 3-Methyl-4-nitrobenzoic and 4-Methyl-3-nitrobenzoic Acid and in vitro Cytotoxic Assay on Human Liver Hepatocellular Carcinoma Cells (HepG2)”, ajc, vol. 24, no. 10, pp. 4763–4767, May 2012.