(3GdfgGjI aj GdaJf hGdedGMe (B/s - (3GHf cKjQ, CHh GdaOGA ESeGYjd s 701-774 (3gLQjs; (3YHO GdYRjR, eMeO CMeOs ((3HjQhJ (B- (3dHfGf (B:s (3OGQ GdLjd ,s, 1988)
Keywords: (3jhe GdbjGeIs; (3YdGeGJ GdSGYIs; (3GdaJf hGdedGMes; (3GdSeYjGJs