(3GdJNWjW GdJQHhj (B: s (3CUhdg h CSGdjHg GdafjI h JWHjbGJg aj GdHdGO GdYQHjI (B/ s - (3YHO GdOGFe, YHO Gddgs ((3HjQhJ (B:s (3OGQ GdYde ddedGjjf,s, 1986)
Keywords: (3GdJQHjI h GdJYdjes; (3GdHdGO GdYQHjIs