Me pēnei te tohu i te whārangi:
Paul Dalziel, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/spending-in-the-economy/media (accessed 29 March 2024)
He kōrero nā Paul Dalziel, i tāngia i te 11 Mar 2010, updated 16 Sep 2016