(3GdEOGQI GdYGeI (B:s (3gjcdI GdCLgRI hUfY GdSjGSGJ hJfajP GdHQGeL GdMchejI (B/s - (3eMeO, ehab MOjOs ((3YeGf, GdCQOf (B:s (3OGQ GdTQhb ddfTQ hGdJhRjY, s, 2000)
(3HHdjhLQGajI (B: (3U(B. 269-277.s
Keywords: (3GdEOGQI GdYGeIs; (3GdJfXje GdEOGQj s