In Australian grammar rules, the placement of the full stop in relation to single quotation marks depends on the context of the quotation. If the quotation is a complete sentence, the full stop comes before the closing single quotation mark.
However, if the quotation does not form a complete sentence on its own and is part of a larger sentence, the full stop usually comes after the closing single quotation mark[1][3].
Citations:
[1] https://www.writerscentre.com.au/blog/qa-quotes-and-punctuation-evil-or-not/
[2] https://www.macquariedictionary.com.au/punctuation-guide/
[3] https://www.eliteediting.com.au/avoiding-americanisms-when-using-australianbritish-english/
[4] https://www.capstoneediting.com/blog/what-is-the-difference-between-single-and-double-quotation-marks
[5] https://www.stylemanual.gov.au/grammar-punctuation-and-conventions/punctuation/quotation-marks
[6] https://www.capstoneediting.com/blog/how-to-use-quotation-marks-correctlyquotation-marks-with-other-punctuation
[7] https://stylemanual.com.au/contents/editing/punctuation/quotation-marks
[8] https://getproofed.com.au/writing-tips/punctuation-tips-how-to-use-quotation-marks/