(3GdCQbe Hf CHj GdCQbe GdeNRhej QVj Gddg Yfg (B: s (3SGHY SHYg aj GdESdGe (B/ s - (3GdWjHj, YcGTI YHO GdefGfs ((3HjQhJ (B:s (3OGQ EHf RjOhf,s, 1997)
Keywords: (3GdCQbe Hf CHj GdCQbe GdeNRhejs