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australian-charts.com
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Bongiorno, David (26 December 1994). "The Guide: Born Natural". The Canberra Times. Vol. 70, no. 21, 802. p. 29. Retrieved 21 May 2016 – via National Library of Australia.
webarchive.nla.gov.au
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Jack Jones: Holmgren, Magnus. "Jack Jones". hem.passagen.se. Australian Rock Database (Magnus Holmgren). Archived from the original on 30 September 2013. Retrieved 21 May 2016.
McFarlane (1999). Encyclopedia entry for 'Southern Sons'. Retrieved 8 February 2010.
"'Zone' at APRA search engine". Australasian Performing Right Association (APRA). Archived from the original on 17 November 2015. Retrieved 21 May 2016. Note: User may have to click "Search again" and provide details at "Enter a title:" e.g. Zone; or at "Performer:" Southern Sons
