Ghosh, S., Hossain, M. K., Kabir, S. E., & Begum, N. (2011). X-ray structure of hexamethyl benzenehexacarboxylate, [C<sub>6</sub>(COOCH<sub>3</sub>)<sub>6</sub>]. Journal of Bangladesh Academy of Sciences, 34(2), 197–200. https://doi.org/10.3329/jbas.v34i2.6866