(3GdMeGjI GdLfGFjI ddYbhO GdEOGQjI hGdeOfjI WHbG dCMcGe Gdabg hGdbVGA(B/s - (3EHQGgje SjO CMeO(B.s ((3GdGScfOQjI (B:s (3OGQ GdLGeYI GdLOjOI ddfTQ ,s, 2000)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI HGddZJjf GdYQHjI hGdaQfSjIs
Keywords: (3GdMeGjI GdLfGFjIs; (3GdYbhO GdeOfjIs; (3GdYbhO GdEOGQjIs