Can you change the Australian Constitution without a referendum?

This video addresses ways that the operation and effect of the Commonwealth Constitution can be changed without a formal constitutional amendment that requires a referendum. It discusses sections 51(xxxvii) and 51(xxxviii), which permit the alteration of the constitutional distribution of power, and s 105A, which allows financial agreements to be made which override the Constitution. It also points out that far greater change has been made to the Commonwealth Constitution by the High Court through changing constitutional interpretation, than has been achieved through referendums. The video concludes with a discussion of whether the Commonwealth Constitution, which forms section 9 of a British Act of Parliament (the Commonwealth of Australia Constitution Act 1900 (UK)), can be amended by the British Parliament, or whether section 15 of the Australia Acts 1986 would allow the Constitution to be amended without a referendum.