(3GddSGf (B:s (3BOGHg, BaGJg (B/s - (3eMeO, CHh MPjaI EHQGgjes ((3WfWG (B- (3eUQ(B:s (3OGQ GdUMGHI ddJQGK,s, 1990)
Keywords: (3GdCNdGb GdESdGejIs; (3GdBOGH GdESdGejIs