Niue Department of Environment
Report to the Government of Niue and the United Nations Development Programme
Invasive Plant Species on Niue following Cyclone Heta by James C. Space, Barbara M. Waterhouse, Melanie Newfield and Cate Bull 2004
Niue Department of Environment
Niue's National Invasive Species Strategy and Action Plan 2013-2020
Niue Department of Environment
Impacts of Invasive Species on Ecosystem Services 2016