Useful web sites for valuation references include:

The Australian Property Institute (API)

The American Society of Appraisers (ASA)

The Royal Institute of Chartered Surveyors (RICS)

Real Estate Institute of Australia (REIA)

Property Council of Australia (PCA)

International Valuation Standards Council (IVSC)

Australian Accounting Standards Board (AASB)

Australian Taxation Office (ATO)

Steadfast Group