RASHIDI, NAZIA A, and B. N. BERAD. “SYNTHESIS, CHARACTERIZATION AND DE-TERTBUTYLATION OF 4-ARYLIMINO-3-TERTBUTYL-1, 3, 4, 5-TETRAHYDRO-2H-1,3,5-BENZOTRIAZEPINE-2-THIONES”. International Journal of Chemistry Research, vol. 3, no. 2, Jan. 2012, pp. 52-55, https://www.ijcr.info/index.php/journal/article/view/91.