(3GdQCj GdYGe h JCKQg HGdEYdGe h GdOYGjI (B:s (3GdcJGHd GdChd(B: (3GdQCj GdYGe (B/s - (3MGJe, eMeO YHO GdbGOQs ((3dHfGf (B:s (3ecJHI dHfGf fGTQhf ,s, 1973)
Keywords: (3GdEYdGes; (3GdOYGjIs; (3GdQCj GdYGes