Uddin, M.N. et al. 2018. A mathematical expression for tiemonium methylsulphate in its simultaneous spectrophotometric estimation with ketorolac tromethamine. European Journal of Chemistry. 9, 2 (Jun. 2018), 138–146. DOI:https://doi.org/10.5155/eurjchem.9.2.138-146.1715.