(3GdbGfhf GdEOGQj (B/s - (3eMeO QaYJ HYHO GdhgGHs ([(3O(B.(3e(B] :s [(3O(B.(3f(B](3,s, 1988)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdEOGQjs