There isn't textbooks for the whole course, but there is textbooks for each class you do.
You can look here:
http://connectbooks.com.au/ and type in each classes number to find your book. Otherwise you go to the timetable information page and it should list what book you need for your subject in the description before all the times.
As textbooks can change from semester to semester and year to year, you should only purchase what you will need for the current semester.