Lots of old issues of Electronics Australia at archive.org, looks like they are organised by year "Electronics Australia 19nn".
Electronics Australia April 1989 has some interesting history.
50 year anniversary issue has reprint of the April 1939 edition. Page 80 has an article on the next 50 years.
https://archive.org/stream/EA1989/EA%201989-04%20April#page/n81/mode/2up