Ashworth, Allan, and Srinath Perera. Cost Studies of Buildings. Sixth edition, Routledge, 2015, http://www.vlebooks.com/vleweb/product/openreader?id=WofEngland&isbn=9781315708867.
Construction 2025. http://www.constructionleadershipcouncil.co.uk/wp-content/uploads/2016/10/bis-13-955-construction-2025-industrial-strategy.pdf.
Flanagan, Roger, et al. Whole Life Appraisal for Construction. Blackwell Science, 2005, http://www.vlebooks.com/vleweb/product/openreader?id=WofEngland&isbn=9781405148139.