Humpherson, Andrew (3 June 2004). "Tribute to Mr Bobby Gibbes". Hansard & Papers. Parliament of NSW. Archived from the original on 12 February 2006. Retrieved 20 October 2007.
Humpherson, Andrew (3 June 2004). "Tribute to Mr Bobby Gibbes". Hansard & Papers. Parliament of NSW. Archived from the original on 12 February 2006. Retrieved 20 October 2007.