(3afhf GdRNQaI Ydi GdRLGL hGdeYGOf (B:s (3GdJehjg HGddhf (B/s - (3GdeaJj, CMeO(B.s ((3OeTb (B:s (3OGQ OeTb ddfTQ,s, 1999)
Keywords: (3GdRLGLs; (3GdRNQaIs