(3eQMdI GdeaGhVGJ aj GdYbhO GdEOGQjI (B:s (3OQGSI ebGQfI (B/s - (3eMeO CMeO YHOGdfYjes ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI(B,s, 2000)
. 196-190 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU CZdHg HGddZI GdYQHjI eY HYV GdfUhU GdaQfSjIs
Keywords: (3GdYbhO GdEOGQjIs; (3WQb GHQGe GdYbO GdEOGQjs; (3GdGdJRGeGJ GdSGHbI Ydj GHQGe GdYbO GdEOGQjs