(3bfGI GdHMQjf (B: s (3OQGSI ai GdbGfhf GdOhdi GdYGe (B/s - (3QTGO YGQa GdSjOs ((3GdCQOf (B:s [(3GdfGTQ ZjQ eMOO(B](3,s, 1982)
(3jTJed Ydj edGMbs
. 87-83(3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdefGWb ZjQ GdeSJbdIs; (3GdbGfhf GdOhdj GdYGes