(3bhGYO GddZI GdYQHjI (B/ s - (3eHGQc eHGQcs ([S.N] : (3GdTQcI GdYGdejI ddcJGH T e d , s, 1987)
Keywords: (3GddZI GdYQHjIs; (3GdfMh GdYQHis; (3bhGYO GddZI GdYQHjIs