In Australia each institution has its own application procedures and admission requirements so il would be better to contact your chosen university for an application form. To study here you'll need to apply for both admission to an institution and also for a student visa from the Australian Government so it's necessery to carefully check student visa information on the Department of Immigration and Border Protection (DIBP).
Entry requirements can include: the academic requirements, evidence of funds to support your study and overseas student health cover. The academic requirements you need to study in Australia depend on the level of education you want to study. Indeed, in some cases, you may need to present your results of an English language test.
You can choose up to six courses in your application. Each university you've applied to consider your application separately. This means that you may receive an offer from each course that you include in your application.