Me pēnei te tohu i te whārangi:
Joanna Orwin, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/southern-beech-forest/media (accessed 20 April 2024)
He kōrero nā Joanna Orwin, i tāngia i te 24 Sep 2007