Me pēnei te tohu i te whārangi:

Ron Palenski. Related biographies for 'Jarden, Ronald Alexander', Dictionary of New Zealand Biography, first published in 2000, updated o Pēpuere, 2006. Te Ara - the Encyclopedia of New Zealand, https://teara.govt.nz/mi/biographies/5j4/jarden-ronald-alexander/related-biographies (accessed 19 April 2024)