(3Gdedd hGdfMd (B/s - (3GdTgQSJGfj, eMeO Hf YHO GdcQje Hf CMeO,s 479-548 (3gLQjG(B.s ((3HjQhJ (B:s (3OGQ GdeYQaI,s, 1997)
Keywords: (3GdaQb GdESdGejIs