Slideshow: The numbers behind Celtic's unprecedented quadruple treble
Absolute Horse - July 2021/August 2021 by Absolute Horse Magazine - Issuu
Hail! Hail! to the History Bhoys as Celtic win the Double Treble
Celebrating - Stornoway Saltire Celtic Supporters Club
Slideshow: The numbers behind Celtic's unprecedented quadruple treble
Adventures – 2022/23 – The Scottish Football Adventure
Celebrating - Stornoway Saltire Celtic Supporters Club
Andy Walker column: Where do quadruple-treble winners Celtic go next?, Football News
Slideshow: The numbers behind Celtic's unprecedented quadruple treble
How Celtic won the quadruple Treble as Hearts victory seals untouchable glory - Daily Record
Quadruple Treble: Part 3: 2018/19 Treble Treble – Kevin McCluskie
Celtic maul Rangers aftermath RECAP as pundits and fans reaction to the derby showdown - Daily Record