Me pēnei te tohu i te whārangi:
Clive Aspin, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/hokakatanga/media (accessed 29 March 2023)
He kōrero nā Clive Aspin, i tāngia i te 5 May 2011, reviewed & revised 22 Jan 2019