(3LZQGajI GdeedcI GdYQHjI GdSYhOjI (B/s - (3GdTQja, YHO GdQMef UGObs ((3GdQjGV (B:s (3OGQ GdeQjN,s, 1995)
(3HjdjhLQGajI (B: (3U(B. 377-383.s
Keywords: (3GdSYhOjIs -- (3LZQGajGs