(3GdLGeY aj CdaGX GdcaQ (B/s - (3HOQ GdQTjO, eMeO Hf ESeGYjd Hf eMehO,s (3Jhaj (B768 (3gLQjs; (3GdNejS, eMeO Hf YHO GdQMef,s 1376 (3gLQj(B-s ((3GdbGgQI (B:s (3OGQ EjdGa GdOhdjI ddfTQ hGdJhRjY,s, 1999)
Keywords: (3GdcaQs; (3GdCdaGX (B((3Yde GdcdGe(B)s