(3ebOeI aj efGgL GdHMK GdEYdGej (B/s - (3GddHGf,TQja OQhjT,gTGe, YWjI YHO GdebUhO s ((3eUQ (B:s (3GdOGQ GdYQHjI ddfTQ h GdJhRjY ,s, 2008)
Keywords: (3GdEYdGejs; (3ebOeI s; (3efGgL GdHMKs