Me pēnei te tohu i te whārangi:
Mark Derby, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/indoor-sports/media (accessed 1 December 2023)
He kōrero nā Mark Derby, i tāngia i te 5 Sep 2013, updated 1 Jun 2016