Kousya, S. E.-., R. Mohare, M. Riadb, and M. Elnagdi. “?STUDIES WITH POLYFUNCTIONALLY SUBSTITUTED HETEROAROMATIC COMPOUNDS: SYNTHESIS OF SOME NEW POLYFUNCTION,ALLY SUBSTITUTED PYRIDO [3, 2-C]- PYRIDINES ANDPYRIDO [2,3-C]-PYRIDAZINES”. Biological Sciences - PJSIR, vol. 41, no. 2, Sept. 1998, pp. 81-85, https://v2.pjsir.org/index.php/biological-sciences/article/view/2238.