Me pēnei te tohu i te whārangi:
Paul Christoffel, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/liquor-laws/media (accessed 11 June 2023)
He kōrero nā Paul Christoffel, i tāngia i te 5 Sep 2013, updated 15 Dec 2014