W. J. W. (1932). "[Review of] The Place-Names of Galloway: Their Origin and Meaning Considered by Herbert Maxwell; Scottish Place-Names by W. C. MacKenzie; Place-Names of Glengarry and Glenquoich and Their Associations by Edward C. Ellice". The Geographical Journal. 79 (5): 419. doi:10.2307/1783944. ISSN0016-7398. JSTOR1783944.
hill-bagging.co.uk
"Criffel". hillbagging.co.uk. Retrieved 24 October 2019.
jstor.org
W. J. W. (1932). "[Review of] The Place-Names of Galloway: Their Origin and Meaning Considered by Herbert Maxwell; Scottish Place-Names by W. C. MacKenzie; Place-Names of Glengarry and Glenquoich and Their Associations by Edward C. Ellice". The Geographical Journal. 79 (5): 419. doi:10.2307/1783944. ISSN0016-7398. JSTOR1783944.
Drummond, Peter (2010). Scottish Hill Names: Their origin and meaning (Revised 2nd ed.). Scottish Mountaineering Trust. p. 176. ISBN978-0-907521-95-2. OCLC148288097.
W. J. W. (1932). "[Review of] The Place-Names of Galloway: Their Origin and Meaning Considered by Herbert Maxwell; Scottish Place-Names by W. C. MacKenzie; Place-Names of Glengarry and Glenquoich and Their Associations by Edward C. Ellice". The Geographical Journal. 79 (5): 419. doi:10.2307/1783944. ISSN0016-7398. JSTOR1783944.