June and Jennifer Gibbons (English Wikipedia)

Leach, Beccy; Gunasekara, Jessica (26 December 2023). "Broadmoor: Silent twin on being locked up with Ronnie Kray". BBC News. Retrieved 26 December 2023.
BBC (26 December 2023). "June: Voice of a Silent Twin". BBC Sounds (Podcast). BBC. Event occurs at 7:17. Retrieved 20 November 2024.
BBC (26 December 2023). "June: Voice of a Silent Twin". BBC Sounds (Podcast). BBC. Event occurs at 6:35. Retrieved 20 November 2024.
BBC (26 December 2023). "June: Voice of a Silent Twin". BBC Sounds (Podcast). BBC. Event occurs at 8:05. Retrieved 20 November 2024.
BBC (26 December 2023). "June: Voice of a Silent Twin". BBC Sounds (Podcast). BBC. Event occurs at 9:19. Retrieved 20 November 2024.
"BBC Sounds - June: Voice of a Silent Twin - Available Episodes". BBC.

"Screen Two: The Silent Twins". BBC Genome. BBC. 19 January 1986. Retrieved 17 September 2017.
"Inside Story Silent Twin – Without My Shadow". BBC Genome. BBC. 22 September 1994. Retrieved 17 September 2017.

billiongraves.com

"Jennifer Lorraine Gibbons'". BillionGraves.com. 12 March 1993. Retrieved 13 March 2021.

Harpin, Anna; Nicholson, Helen (7 October 2016). Performance and Participation: Practices, Audiences, Politics. Palgrave Macmillan. ISBN 9781137393180. Retrieved 30 January 2018 – via Google Books.

Kellam, Alexander M.P. (October 1993). "The silent twins" (PDF). Psychiatric Bulletin. 17 (10): 622–623. doi:10.1192/pb.17.10.622.

DAVID TIBET: David Tibet: Sing Omega – DAVID TIBET, accessdate: October 21, 2022

Kellam, Alexander M.P. (October 1993). "The silent twins" (PDF). Psychiatric Bulletin. 17 (10): 622–623. doi:10.1192/pb.17.10.622.

Morgan, Kathleen (2 August 2010). "Tragic tale of twins and their secret world". Herald Scotland. Archived from the original on 17 May 2015. Retrieved 19 July 2013.

Bennetto, Jason (12 March 1993). "Inquiry into death of 'silent twin'". The Independent. Retrieved 9 April 2020.

"The Twin Sisters Who Retreated Into Their Own World". The New Yorker. 27 November 2000. Retrieved 22 October 2021.
Als, Hilton (27 November 2000). "The Identical Twin Sisters Who Retreated Into Their Own World". The New Yorker. Online as Als, Hilton (4 December 2000), "We Two Made One", The New Yorker. Retrieved 9 April 2020.

Shapiro, Harriet (27 October 1986). "A British Journalist Unravels the Tale of the Twins Who Wouldn't Talk". People. Retrieved 29 April 2019.

Evans, Jason (23 December 2018). "Locked Up Mysterious Twins Wouldn't Speak to Anyone". Wales On Sunday. Archived from the original on 24 April 2019.
Misstear, Rachael (31 October 2011). "Powerful Play about Silent Twins Will Get You Talking". Western Mail. Cardiff, Wales. Archived from the original on 24 April 2019.

Mark (9 February 2023). "The Pepsi-Cola Addict". Strange Attractor. Retrieved 21 May 2023.

Morgan, Kathleen (2 August 2010). "Tragic tale of twins and their secret world". Herald Scotland. Archived from the original on 17 May 2015. Retrieved 19 July 2013.
Evans, Jason (23 December 2018). "Locked Up Mysterious Twins Wouldn't Speak to Anyone". Wales On Sunday. Archived from the original on 24 April 2019.
Misstear, Rachael (31 October 2011). "Powerful Play about Silent Twins Will Get You Talking". Western Mail. Cardiff, Wales. Archived from the original on 24 April 2019.

de Angelis, April (28 June 2007). "April de Angelis on troubled twins Jennifer and June Gibbons". The Guardian. London: GMG. ISSN 0261-3077. OCLC 60623878. Retrieved 19 July 2013.
Wallace, Marjorie (13 July 2003). "Marjorie Wallace: The tragedy of the Bijani sisters". The Guardian. London. ISSN 0261-3077. Retrieved 9 April 2020.
Wallace, Marjorie (2008). The Silent Twins. London: Vintage. p. 293. ISBN 978-0-09-958641-8. OCLC 60262552.
Mackay, Emily (10 December 2014). "Manic Street Preachers: 10 of the best". The Guardian. ISSN 0261-3077. Retrieved 3 February 2019.