(3eYGde HfGA fXQjI GdJQHjI GdESdGejI (B/s - (3jGdLf, ebOGOs ((3GdQjGV (B:s (3OGQ YGde GdcJH ddfTQ hGdJhRjY,s, 1991)
(3HHdjhLQGajI (B: (3U(B. 131-136.s
Keywords: (3GdJQHjI GdESdGejIs