Win, Y.-F. et al. 2012. 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). Asian Journal of Chemistry. 24, 10 (May 2012), 4763–4767.