(3GdeSLO LGeY hLGeYI (B/s - (3eMeO Hf CMeO Hf UGdM GdUGdMs ((3GdQjGV (B:s, 2000)
. 215-206 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3OhQ GdYHGOI hGdRjGQIs; (3GdeSGLOs