The Australian Government Documents Collection includes works published by Commonwealth and State Government departments, statutory authorities and parliamentary bodies.
Murdoch University Library receives on deposit all materials published by the Australian Government Information Management Office (AGIMO), and all Australian Bureau of Statistics publications related to Australia as a whole and Western Australia.
Look here for Government Publications from Australia.
Australian public policy and practice resources can also be identified via APO (Analysis & Policy Observatory), a not-for-profit, open access knowledge and evidence base.
The following websites provide images which may, with acknowledgement of your source, be used for educational purposes:
Australian
International