(3GdeQGgbhf (B:s (3OQGSI faSjI ESdGejI ddBHGA hGdeYdejf hGdOYGI (B/s - (3GdfZjeTj, YHO GdYRjR Hf eMeOs ((3GdQjGV (B:s (3OGQ GdeSde ddfTQ h GdJhRjY,s, 2001)
(3HHdjhLQGajI (B: (3U(B. 173-178.s
(3ehLg ddBHGA hGdeYdejf hGdOYGI(B.s
Keywords: (3GdESdGe hGdeQGgbIs; (3GdeQGgbIs -- (3LhGfH faSjIs; (3GdESdGe hYde GdfaSs -- (3GdeQGgbIs