(3GdEHGfI Yf CUhd GdOjGfI (B/s - (3CHh GdMSf GdCTYQj, Ydj Hf ESeGYjd Hf ESMGbs 260-324 (3gLQjs ((3HjQhJ (B- (3dHfGf (B:s (3OGQ GdcJGH GdYQHj ,s, 1990)
Keywords: (3GdCTGYQI (B((3aQbI ESdGejI(B)s