Choudhari, J.R., and B.N. Berad. “Synthesis of 3-Phenylimino-4-Aroyl Acyl-6-Aroyl Acyl Hydrazino-1,2,4,5-Dithiadiazine”. Asian Journal of Chemistry, vol. 17, no. 4, June 2016, pp. 2800-2, https://asianpubs.org/index.php/ajchem/article/view/13968.