To qualify for admission to a PhD, applicants must:

possess a degree that is the equivalent to a Bachelor's degree with Honours which includes a research component with the equivalent of at least 48 credit points and awarded:
First Class Honours, or
Second Class Honours (First Division), or
possess a degree that is equivalent to a Masters degree from the University, with a relevant research component, or
submit other evidence of relevant research qualifications or research experience, to satisfy the Dean, Graduate Studies that the applicant possesses a level of relevant research experience equivalent to an award in either clause (4)a or (4)b, and
satisfy such additional requirements for admission to a PhD candidature, if any, as may be prescribed by the Dean, Graduate Studies.
All candidates except those who are enrolled in a course offered in a language other than English, are expected to be proficient in English comprehension and expression. Applicants, whose first language is not English, are required to achieve an International English Language Test Score (IELTS) Academic (or equivalent) equal to or above 7.0, with a minimum 7.0 in Writing and no other band less than 6.5.

TOEFL paper-based - 592 min 5.0 (TWE)
TOEFL internet-based - 94 with no less than 24 in writing