(3GdaJGhi (B/s - (3GHf HGR, YHO GdYRjR Hf YHO Gddg Hf YHO GdQMef,s 1332-1420 (3gLQjG(B.s ((3GdQjGV (B:s (3eDSSI GdOYhI GdESdGejI GdUMajI,s, 1989)
Keywords: (3Gdabg GdESdGejs; (3GdCMcGe GdTQYjIs; (3GdYHGOGJ (B((3abg ESdGej(B)s