Watt, D. C. (1989). How War Came. London: Parthenon. p. 400.
bosworthtoller.com
Boswort h, Joseph; Toller, T Northcote, eds. (2010). "Gafol". An Anglo-Saxon Dictionary Online. Comp. Sean Christ and Ondřej Tichý. Faculty of Arts, Charles University in Prague. Retrieved 4 April 2016.
doi.org
Green, J. A. (April 1981). "The Last Century of Danegeld". The English Historical Review. 96 (379): 241–258. doi:10.1093/ehr/xcvi.ccclxxix.241. p. 241.
Prestwich, J.O. (1954). "War and Finance in the Anglo-Norman State". Transactions of the Royal Historical Society. 5th Series. 4: 19–43. doi:10.2307/3678850. JSTOR3678850. S2CID163311909..
Coupland, Simon (1998). "From Poachers to Gamekeepers: Scandinavian Warlords and Carolingian Kings". Early Medieval Europe. 7 (1): 103–104. doi:10.1111/1468-0254.00019. S2CID161148239.
Ward, Grace Faulkner (October 1954). "The English Danegeld and the Russian Dan". The American Slavic and East European Review. 13 (3): 299–318. doi:10.2307/2491815. JSTOR2491815. p. 304.
gutenberg.org
Gafol, gyld and in one instance heregild appear in the Anglo-Saxon Chronicle (ASC). Details on some of the payments are in the ASC MS C, D and E for the years 991, 994, 1002, 1006, 1007, 1009, 1011, 1012, 1013, 1018. (English translation at "Project Gutenberg".).
jstor.org
Prestwich, J.O. (1954). "War and Finance in the Anglo-Norman State". Transactions of the Royal Historical Society. 5th Series. 4: 19–43. doi:10.2307/3678850. JSTOR3678850. S2CID163311909..
Ward, Grace Faulkner (October 1954). "The English Danegeld and the Russian Dan". The American Slavic and East European Review. 13 (3): 299–318. doi:10.2307/2491815. JSTOR2491815. p. 304.
mirror.co.uk
Parsons, Tony (October 2004). "We'll all pay for ransom". The Daily Mirror. Archived from the original on 22 September 2018. Retrieved 3 April 2018.
Prestwich, J.O. (1954). "War and Finance in the Anglo-Norman State". Transactions of the Royal Historical Society. 5th Series. 4: 19–43. doi:10.2307/3678850. JSTOR3678850. S2CID163311909..
Coupland, Simon (1998). "From Poachers to Gamekeepers: Scandinavian Warlords and Carolingian Kings". Early Medieval Europe. 7 (1): 103–104. doi:10.1111/1468-0254.00019. S2CID161148239.
Parsons, Tony (October 2004). "We'll all pay for ransom". The Daily Mirror. Archived from the original on 22 September 2018. Retrieved 3 April 2018.
worldcat.org
search.worldcat.org
Fish, Leslie; Kipling, Rudyard (1990), Songs by Rudyard Kipling, set to music by Leslie Fish (Music cassette), Portland, OR: Firebird Arts & Music, OCLC31275334