Me pēnei te tohu i te whārangi:
Paul Goldsmith, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/taxes/media (accessed 2 December 2023)
He kōrero nā Paul Goldsmith, i tāngia i te 11 Mar 2010, updated 2 Sep 2016