1. Granwal., L.: Statista. Industry in New Zealand - statistics & facts (2020). https://www.statista.com/topics/5725/construction-industry-in-new-zealand/Construction
2. Hinton., T.: Statista. Quarterly number of employees in construction New Zealand 2010–2020 (2020). https://www.statista.com/statistics/975706/new-zealand-employee-count-in-the-construction-industry/#statisticContainer
3. Granwal., L.: Statista. Construction industry New Zealand 2014–2020 (2020). https://www.statista.com/statistics/1026508/new-zealand-construction-industry-gross-domestic-product/GDP
4. Steeman., M.: The construction industry is bracing for more job losses, a survey shows (2020). https://www.stuff.co.nz/business/122852866/the-construction-industry-is-bracing-for-more-job-losses-a-survey-shows
5. Advances in Intelligent Systems and Computing;A van Heerden,2020