J. M. Morsy, F. Ismail, R. M. A.-. Rahman, and H. A. Amine, “?SYNTHESIS AND CHEMICAL REACTIVITY OF NOVEL FUNCTIONALLY SUBSTITUTED- 5,6-DIPHENYL-l,2,4-TRIAZINES”, Pakistan Journal of Scientific & Industrial Research, vol. 43, no. 4, pp. 208–213, Jun. 2000.