(3bGfhf GdYbhHGJ GdbSe GdYGe (B:s (3GdeSGgeI GdLfGFjI hehGfY GdeSFhdjI (B/s - (3Lejd YHO GdHGbj GdUZjQs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI ,s, 1998)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdLfGFj s; (3GdeSGgeI GdLfGFjIs; (3bGfhf GdYbhHGJ (B- (3GdbSe GdYGes