Ali, Junade (7 October 2019). "Written evidence"(PDF). House of Lords Constitution Committee. FPA (11). Archived(PDF) from the original on 25 October 2019. Retrieved 23 December 2019.
Blackburn, Robert (31 October 2019). "Written evidence"(PDF). House of Lords Constitution Committee. FPA (16). Archived(PDF) from the original on 23 December 2019. Retrieved 23 December 2019.
Craig, Robert (31 October 2019). "Written evidence"(PDF). House of Lords Constitution Committee. FPA (13). Archived(PDF) from the original on 26 October 2019. Retrieved 23 December 2019.
Ali, Junade (7 October 2019). "Written evidence"(PDF). House of Lords Constitution Committee. FPA (11). Archived(PDF) from the original on 25 October 2019. Retrieved 23 December 2019.
Blackburn, Robert (31 October 2019). "Written evidence"(PDF). House of Lords Constitution Committee. FPA (16). Archived(PDF) from the original on 23 December 2019. Retrieved 23 December 2019.
Craig, Robert (31 October 2019). "Written evidence"(PDF). House of Lords Constitution Committee. FPA (13). Archived(PDF) from the original on 26 October 2019. Retrieved 23 December 2019.