(3GdYQa GdYQHi UjGZI LOjOI (B/ s - (3Rjf cGed GdNhjScis; (3YHOGdLhGO MSjf GdHGHGs ([S.N] : (3ejOJh ddJfejI hGdQYGjI GdUMjI , s, 1988)
Keywords: (3fMhs; (3GddZI GdYQHjIs; (3GdfMh GdaGXs