Me pēnei te tohu i te whārangi:
Rob Laking, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/state-owned-enterprises/media (accessed 8 June 2023)
He kōrero nā Rob Laking, i tāngia i te 20 Jun 2012, updated 1 Feb 2015