(3GdeSFhdjI GdbGfhfjI aj eLGd THcGJ GdEfJQfJ (B/s - (3MSjf, eMeO YHO GdXGgQ(B.s ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI,s, 2002)
(3HHdjhLQGajI (B: (3U(B. 145-149.s
Keywords: (3GdEfJQfJs -- (3bhGfjf hJTQjYGJs