Kaushik, R.D., and Rajesh Joshi. “Determination of Some Aromatic Amines in Micrograms by Kinetic Spectrophotometric Method Based Upon Periodate Oxidation in Aqueous Mixed Medium ”. Asian Journal of Chemistry, vol. 10, no. 2, Mar. 2010, pp. 328-32, https://asianpubs.org/index.php/ajchem/article/view/23608.