"Tasmanian Road Route Codes"(PDF). Department of Primary Industries, Parks, Water & Environment. May 2017. Archived from the original(PDF) on 1 August 2017. Retrieved 16 January 2021.
"Placenames Tasmania – Barretta". Placenames Tasmania. Select “Search”, enter "2910S", click “Search”, select row, map is displayed, click “Details”. Retrieved 16 January 2021.
web.archive.org
"Tasmanian Road Route Codes"(PDF). Department of Primary Industries, Parks, Water & Environment. May 2017. Archived from the original(PDF) on 1 August 2017. Retrieved 16 January 2021.