(3GdJChjd aj OYGA GdJfRjd(B/s - (3SfOj , YHO GdYRjR eMeOs ((3GdQjGV (B:s [(3O(B.(3f(B](3,s, 2001)
Keywords: (3GdCOYjI h GdChQGOs; (3GdMOjKs