(3CaYGd TjWGfjI aj djdI GdONdI (B: s (3GdQHW h CfhGYg h WQb YdGLg (B/ s - (3GdLHGdj, CHh eMeOs; (3YdGeI, SYO GdOjfs ((3HjQhJ (B:s (3OGQ GdjhSa,s, 1998)
Keywords: (3GdLfs; (3CUhd GdOjf GdESdGejs