(3QMdI GHf HWhWI GdeSeGI JMaI GdfXGQ aj ZQGFH GdGeUGQ (B/s - (3MQH ,WdGd s ((3HjQhJ (B:s (3OGQ GdcJH GdYQHjI ,s, 2011)
Keywords: (3GdQMGdI GdYQH s