Main Roads Western Australia (28 February 2011). "Metropolitan Network"(PDF) (Map). Intergrated Service Arrangement. 1:500,000. Government of Western Australia. Archived from the original(PDF) on 3 August 2013. Retrieved 11 March 2015.
Main Roads Western Australia (13 August 2013). Wheatbelt South Region map(PDF) (Map). 1:590,551. Version 1.0. Government of Western Australia. Archived(PDF) from the original on 29 August 2013. Retrieved 11 March 2015.
Main Roads Western Australia (16 August 2013). Great Southern Region map(PDF) (Map). 1:721,154. Version 1.0. Government of Western Australia. Archived(PDF) from the original on 29 August 2013. Retrieved 11 March 2015.
mediastatements.wa.gov.au
Buswell, Troy (25 July 2013). "Buckingham Bridge opens to traffic". Media Statements of the Government of Western Australia (Media statement). Western Australia: Government of Western Australia. Archived from the original on 9 July 2019. Retrieved 9 July 2019.
Buswell, Troy (25 July 2013). "Buckingham Bridge opens to traffic". Media Statements of the Government of Western Australia (Media statement). Western Australia: Government of Western Australia. Archived from the original on 9 July 2019. Retrieved 9 July 2019.
Main Roads Western Australia (28 February 2011). "Metropolitan Network"(PDF) (Map). Intergrated Service Arrangement. 1:500,000. Government of Western Australia. Archived from the original(PDF) on 3 August 2013. Retrieved 11 March 2015.
Main Roads Western Australia (13 August 2013). Wheatbelt South Region map(PDF) (Map). 1:590,551. Version 1.0. Government of Western Australia. Archived(PDF) from the original on 29 August 2013. Retrieved 11 March 2015.
Main Roads Western Australia (16 August 2013). Great Southern Region map(PDF) (Map). 1:721,154. Version 1.0. Government of Western Australia. Archived(PDF) from the original on 29 August 2013. Retrieved 11 March 2015.