Belusko, Martin, and Timothy O’Leary. “Cost Analyses of Measures to Improve Residential Energy Ratings to 6 Stars - Playford North Development, South Australia”. Construction Economics and Building 10, no. 1-2 (1): 36 - 47. Accessed December 7, 2021. https://epress.lib.uts.edu.au/journals/index.php/AJCEB/article/view/1584.