(3GdJYHjQ GdhXjaj (B/ s - (3GdHQGRj, eLO eMeO GdHGcjQs ((3YeGf (B:s (3ecJHI GdQSGdI GdMOjKI,s, 1989)
Keywords: (3GddZI GdYQHjIs; (3GdJYHjQs