Clayton, B, Jonas, P, Harding, R, Harris, M and Toze, M 2013, Industry currency and professional obsolescence: what can industry tell us?,NCVER, Adelaide, viewed 8 July 2024, https://www.ncver.edu.au/research-and-statistics/publications/all-publications/industry-currency-and-professional-obsolescence-what-can-industry-tell-us.