1. ASHER , G. NAULLS , D. 1987 Maori Land . New Zealand Planning Council, Planning Paper No. 29
2. The Maori;DOUGLAS;Pacific Viewpoint,1979
3. DOUGLAS , E.M.K. 1984 Waiora, Waimaori, Waikino, Waimate, Waitai: Maori Perceptions of Water and the Environment . Centre for Maori Studies and Research, Occasional Paper No. 27