Challenger 1 (English Wikipedia)

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"Challenger Tanks: Engines (Qs.1)". TheyWorkForYou. UK Parliament. 22 April 2022. Retrieved 24 April 2022.

Foss, Christopher (22 February 2018). "Jordan restructures its armoured formations". Jane's Defence Weekly. Archived from the original on 22 February 2018.
"Ron Mihalko - CAT '87 Teams". Archived from the original on 30 April 2012. Retrieved 31 January 2013.
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"1 (British) Armoured Division". Archived from the original on 11 August 2011. Retrieved 11 August 2011.
"Jordan restructures its armoured formations | Jane's 360". Archived from the original on 1 July 2018. Retrieved 1 July 2018.

Chris Copson (16 December 2022). Tank Chats Reloaded Challenger 1 The Tank Museum (Youtube). The Tank Museum. Event occurs at 19:50. Retrieved 4 February 2023.