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Wolfgramm joined the Canberra Raiders in 2000 and spent three seasons at the club.
- Brown, Michael (26 November 2006). "League: Farewell to Wiki, Jones and Vagana". The New Zealand Herald. Retrieved 2 October 2011.
- Lion Red Rugby League Annual 1995, New Zealand Rugby Football League, 1995. p.187
- Jessup, Peter (20 October 1999). "Rugby League: Tongans not planning rough stuff". The New Zealand Herald. Retrieved 2 October 2011.