(3OhQ MQha GdYWa aj CSJfHGW GdCMcGe ef eUGOQgG GdTQYjI (B/ s - (3YeQ, OjGH Sdje eMeOs ((3GdbGgQI (B:s, 1988)
Keywords: (3GdbQBf GdcQjes; (3GdfMh h GdUQas; (3GdaGXs; (3eYGfj h CMcGes