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/salvation-army/media (accessed 1 October 2023)
He kōrero nā Mark Derby, i tāngia i te 5 May 2011, reviewed & revised 20 Apr 2018