(3e Y GdYeTQj (B/ s - (3GdYSbdGfj, EHf MLQs; (3GdTGaYj, CHh YHO Gddg eMeO MSf eMeO MSfs ((3HjQhJ (B:s (3OGQ GdcJH GdYdejI,s, 1997)
Keywords: (3GdMOjK GdTQjas