Uddin, M. N., Kabir, M. T. and Uddin, M. (2018) “A mathematical expression for tiemonium methylsulphate in its simultaneous spectrophotometric estimation with ketorolac tromethamine”, European Journal of Chemistry, 9(2), pp. 138–146. doi: 10.5155/eurjchem.9.2.138-146.1715.