Levine, Stephen (12 June 2012). "Coat of arms – Coat of arms overview". e Ara – the Encyclopedia of New Zealand. Archived from the original on 26 April 2022. Retrieved 12 October 2018.
Walrond, Carl. "The koru". Te Ara – The Encyclopedia of New Zealand. Archived from the original on 1 July 2022. Retrieved 12 October 2018.
Levine, Stephen (12 June 2012). "Coat of arms – Coat of arms overview". e Ara – the Encyclopedia of New Zealand. Archived from the original on 26 April 2022. Retrieved 12 October 2018.