Me pēnei te tohu i te whārangi:
Ian Hunter, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/manufacturing-an-overview/media (accessed 4 December 2023)
He kōrero nā Ian Hunter, i tāngia i te 11 Mar 2010