(3GdfXGe GdSjGSj h GdEOGQj aj GdEJMGO GdShajGJj (B/ s - (3dhSGL, ejTGds; (3YUahQ, YjSis ((3HjQhJ (B:s (3efThQGJ YhjOGJ,s, 1983)
Keywords: (3QhSjG GdEJMGOjIs; (3GdSjGSIs