(3JYQa Ydi GdHQjO GdEdcJQhfj (B/s - (3YeQj, eYJUe eMeO TaGs; (3GdfbQj(B, (3egjH s; (3aQMI(B, (3dejSs ((3YeGf (B:s (3OGQ GdQVG ddfTQ,s, 2000)
Keywords: (3GdHQjO GdEdcJQhfj(B.s; (3GdNOeGJ GdHQjOjI(B.s; (3JWHjbGJ GdMGShH(B.s