Commonwealth of Australia. "Significant events in ASIO's history". Australia Security Intelligence Organisation Website. Commonwealth of Australia. Archived from the original on 13 October 2007. Retrieved 21 April 2008.
Parkes, Aidan (2 September 2017). "Lessons through Reform: Australia's Security Intelligence". The International Journal of Intelligence, Security, and Public Affairs. 19 (3). Informa UK Limited: 157–170. doi:10.1080/23800992.2017.1384675. ISSN2380-0992. S2CID158719738.
The State of New South Wales (1999). "Obituary – Robert Marsden Hope". The Heritage Council of New South Wales Website. The State of New South Wales. Retrieved 21 April 2008.
Parkes, Aidan (2 September 2017). "Lessons through Reform: Australia's Security Intelligence". The International Journal of Intelligence, Security, and Public Affairs. 19 (3). Informa UK Limited: 157–170. doi:10.1080/23800992.2017.1384675. ISSN2380-0992. S2CID158719738.
web.archive.org
Commonwealth of Australia. "Significant events in ASIO's history". Australia Security Intelligence Organisation Website. Commonwealth of Australia. Archived from the original on 13 October 2007. Retrieved 21 April 2008.
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Parkes, Aidan (2 September 2017). "Lessons through Reform: Australia's Security Intelligence". The International Journal of Intelligence, Security, and Public Affairs. 19 (3). Informa UK Limited: 157–170. doi:10.1080/23800992.2017.1384675. ISSN2380-0992. S2CID158719738.