More links and websites
More suggestions and sources
Bayard, Donn. Kiwitalk: sociolinguistics and New Zealand society. Palmerston North: Dunmore Press, 1995.
Bell, Allan, and Janet Holmes, eds. New Zealand ways of speaking English. Clevedon, England: Multilingual Matters, 1990.
Bell, Allan, Ray Harlow and Donna Starks, eds. Languages of New Zealand. Wellington: Victoria University Press, 2005.
Hay, Jennifer, Margaret Maclagan, and Elizabeth Gordon. New Zealand English. Edinburgh: Edinburgh University Press, 2008.