(3GdNQGL hUfGYI GdcJGHI (B/ s - (3LYaQ Hf bOGeI (B: (3GHhGdbGSe Hf bOGeI Hf RjGOs; (3eMeO MSjf GdRHjOi (B( (3TQM (B)s ((3GdYQGb (B: s (3OGQ GdQTjO , s, 1981)
Keywords: (3GdGOH GdYQHis; (3GdHdGZI GdYQHjIs; (3GdOhdI GdYHGSjI GdKGfjIs