Me pēnei te tohu i te whārangi:
David Tripe, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/banking-and-finance/media (accessed 6 December 2023)
He kōrero nā David Tripe, i tāngia i te 11 Mar 2010