Roberts, A.; Ryan, D.C. (1987). "The R and I Bank Tower, Perth". First National Structural Engineering Conference 1987: Preprints of Papers. Canberra: Institution of Engineers, Australia: 679–684. Archived from the original on 30 December 2012. Retrieved 7 November 2008.
Roberts, A.; Ryan, D.C. (1987). "The R and I Bank Tower, Perth". First National Structural Engineering Conference 1987: Preprints of Papers. Canberra: Institution of Engineers, Australia: 679–684. Archived from the original on 30 December 2012. Retrieved 7 November 2008.