(3GdJhcd Ydi Gddg JYGdi hYdGbJg HGdCSHGH (B/s - (3GdOejLj, YHO Gddg Hf YeQ s ((3GdQjGV (B:s (3OGQ GdhWf ddfTQ,s, 2000)
(3HHdjhLQGajI (B: (3U(B. 257-281.s
Keywords: (3YbjOIs -- (3GdJhcds; (3GdJhcd Ydi Gddg s; (3Yde GdcdGes