(3JMjG GdOjebQGWjI s - (3eUWai Cejf s ((3eUQ (B:s [(3GdfGTQ ZjQ eMOO(B] ,s, 1980)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3GdOjebQGWjI s; (3GdSjGSI aj eUQ s; (3SjGSGJ eUQjI s