(3Md eLGdS EOGQI GdCfOjI GdQjGVjI (B:s ((3GdefGRYGJ hBdjGJ GdJShjI (B) (3OQGSI ebGQfI (B/ s - (3eMeO CMeO YHOGdfYjes ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI(B,s, 2008)
. 262-255 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU CZdHg HGddZI GdYQHjI HYV GdfUhU GdEfLdjRjI hGdaQfSjIs
Keywords: (3GdbQGQJ GdEOGQjIs; (3GdbGfhf GdEOGQjs