Rauf, Abdur, et al. ā€œInvestigating the Association Behaviour of Cetyltrimethylammonium Bromide As Affected by the Content of Non-Steroidal Antiinflammatory Drug and Temperatureā€. Asian Journal of Chemistry, vol. 25, no. 1, Aug. 2012, pp. 559-62, doi:10.14233/ajchem.2013.13599.