Bradley, Carl. “Toa and the Wero: The Gang and Community Contract Ko Tū a Waho, Ko Rongo a Roto. Tū Outside, Rongo Inside”. New Zealand Sociology, vol. 37, no. 2, Sept. 2022, pp. 54-65, https://nzsociology.nz/index.php/nzs/article/view/132.