* Foreign students barred from bringing partners and children * Ballots to be introduced for backpackers for visa extension * Visitor visas to carry no further stay provision (Rewrites throughout 
Australia cracks down on student and backpacker visas to curb migration
* Foreign students barred from bringing partners and children * Ballots to be introduced for backpackers for visa extension * Visitor visas to carry no further stay provision (Rewrites throughout