(3ehShYI bhGfjf eQGbHI GdCZPjI GdeMdjI hGdeSJhQOg hJfXje JOGhdgG (B/ s - (3Zfje, SejQ YHO GdYRjRs ((3HjQhJ (B:s (3OGQ GdLjd,s, 1990)
Keywords: (3GdCZPjIs; (3QbGHIs; (3eUQs; (3bhGfjf hCfXeIs; (3GdUMI GdYGeIs