Bhattarai, Ajaya, et al. “Effect of Solvent Composition on the Critical Micelle Concentration of Cetylpyridinium Chloride in Ethanol-Water Mixed Solvent Media”. Nepal Journal of Science and Technology, vol. 13, no. 1, Jan. 2013, pp. 89-93, doi:10.3126/njst.v13i1.7446.