(3jbXI GdYQH (B: s (3JGQjN MQcI GdYQH GdbhejI (B/ s - (3GfWhfjhS , LhQL s; (3aGQS , fHjdI Gejf s; (3GdGSO , fGUQ GdOjf s; (3YHGS , GMSGf s ((3HjQhJ (B: s (3OGQ GdYde ddedGjjf , s, 1980)
Keywords: (3GdbhejI GdYQHjI s