Head of State and Governor-General for Australia

 https://www.dfat.gov.au/about-us/publications/corporate/protocol-guidelines/1-introduction-to-australia-and-its-system-of-government#:~:text=Australia's%20Head%20of%20State%20is,the%20Prime%20Minister%20of%20Australia.

https://en.wikipedia.org/wiki/Monarchy_of_Australia

https://www.pmc.gov.au/government/head-of-state

https://en.wikipedia.org/wiki/Monarchy_of_Australia#Public_polling