(3CSGYO hdOj Ydi GdJYHjQ h GdbQGAI h GdcJGHI h GdMSGH (B/ s - (3OhehQJjeGQJ, HGQes ((3HjQhJ (B:s (3OGQ GdaQGTI ddWHGYI hGdfTQ h GdJhRjY,s, 2000)
Keywords: (3GdJYdjes; (3GdbQGGgs; (3GdcJGHgs