(3JGQjN TYhH hGOj Gdfjd aj GdbQf GdJGSY YTQ GdejdGOj (B/ s - (3THjcI, ecjs ((3HjQhJ (B:s (3OGQ GdKbGaI,s, 1980)
Keywords: (3JGQjN eUQs; (3GdJGQjN GdSjGSjs; (3GdbQf GdJGSY YTQs