(3bGfhf JfXje egfI GdeMGeGI hGdfXGe GdOGNdj (B/s - (3fbGHI GdeMGejf (B((3ShQjG(B)s ((3OeTb (B:s (3fbGHI GdeMGejf,s, 1986)
Keywords: (3GdeMGeGI (B((3egfI(B)s -- (3ShQjGs; (3GdeMGeGIs -- (3bhGfjf hJTQjYGJs -- (3ShQjGs