(3CeQGV GdYUQ (B/s - (3GdCfUGQj, MeOjs ((3LOI, GdSYhOjI (B:s (3TQcI ecJHGJ YcGX,s, 1981)
Keywords: (3GdCeQGVs; (3GdUMI GdhbGFjIs