(en) Ewen A. Cameron, «Communication or Separation? Reactions to Irish Land Agitation and Legislation in the Highlands of Scotland, c. 1870–1910», English Historical Review, juin 2005, vol. 120 Issue 487, DOI10.1093/ehr/cei124, pages 633–666.
(en) George Robb, Popular Religion and the Christianisation of the Highlands in the Eighteenth and Nineteenth Centuries, Journal of Religious History, no16 (1), 1990, (ISSN0022-4227), pages 18–34.