In Reply to: yes posted by clovis on Saturday, 6. February 2010 at 19:36 Bali Time:
Yes, but remember to print off the e-ticket from the airline you are leaving Indonesia with.
The Checkin Counter in Australia will ask you to show them your return ticket. If Imigrasi in Bali in Bali refuse you entry to Indonesia because you don't have a return ticket, then the airline has to transport you out of Indonesia at their cost.