72 (3TgQkG eY YHO GdfGUQ (B/ s - (3QVhGf, aJMjs ((3GdbGgQI (B:s (3OGQ GdMQjI ddUMGaI h GdWHGYI h GdfTQ,s, 1986)
Keywords: (3JGQjN eUQs; (3GdJGQjN GdSjGSjs