"Manual – Rail Access"(PDF). Public Transport Authority. 30 August 2021. p. 10. Archived(PDF) from the original on 21 September 2021. Retrieved 21 September 2021.
"HCS SWTR Book 1 - Scope of Works DRAFT 01-09-21_Redacted". Tenders WA. 30 September 2021. Archived from the original on 20 January 2022. Retrieved 20 January 2022. Click Download Now, then Download for Information Only. Make sure HCS SWTR Book 1 - Scope of Works DRAFT 01-09-21_Redacted.pdf is selected, then click Download Documents.
"HCS SWTR Book 1 - Scope of Works DRAFT 01-09-21_Redacted". Tenders WA. 30 September 2021. Archived from the original on 20 January 2022. Retrieved 20 January 2022. Click Download Now, then Download for Information Only. Make sure HCS SWTR Book 1 - Scope of Works DRAFT 01-09-21_Redacted.pdf is selected, then click Download Documents.
"Manual – Rail Access"(PDF). Public Transport Authority. 30 August 2021. p. 10. Archived(PDF) from the original on 21 September 2021. Retrieved 21 September 2021.