(3WQGFa h MhGOK dG JUOb (B/ s - (3bSe GdJQLeg h GdCYOGO OGQ GdcJGH GdYQHjs ((3OeTb (B:s (3OGQ GdcJGH GdYQHj,s, 1988)
Keywords: (3YLGFH h ZQGFHs