Here are the authorship guidelines for PhD students from CSU's policy documents
Research students
(12)A higher degree by research (HDR) student should be listed as principal author on any multiple-authored article that is substantially based on the student’s work for the HDR award. If a supervisor meets the criteria for authorship, they should take second author status, unless the student and supervisor have agreed otherwise.
(13)Acknowledgement of a supervisor as a co-author is appropriate if the supervisor meets the criteria for authorship as stated in the Authorship: A guide supporting the Australian Code for the Responsible Conduct of Research guide and the Research Authorship Guidelines.
(14)There may be circumstances where the supervisor is the principal author, but this must be with the student's written approval. If a research supervisor and their student form a contract for their research collaboration, it must include a statement on the principles to be used to determine authorship.
