(3eOj GNJUGU GdbGVj GdEOGQj HJaSjQ GdeYGgOGJ GdOhdjI (B/s - (3eMeO aDGO YHO GdHGSWs ((3GdGScfOQjI (B:s (3OGQ GdacQ GdLGeYj,s, 1998)
252-260 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbVGA GdEOGQj hhXGFags; (3GdbGfhf GdEOGQjs