Kousya, S.E.-., Mohare, R., Riadb, M. and Elnagdi, M. 1998. ?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. 41, 2 (Sep. 1998), 81–85.