Caldecott, Stratford. 2005. “Stăpânul şi stăpâna inelelor: Tăinuita prezenţă a catolicismului în romanul The Lord of the Rings al lui J.R.R. Tolkien” in J. R. R. Tolkien: credinţă şi imaginaţie. Virgil Nemoianu, Robert Lazu (eds.). Arad: Hartmann, pp. 93-114.
Day, David. 2013 (2003). The World of Tolkien. Mythological Sources of “The Lord of the Rings”. London: Bounty Books. Enright, Nancy. 2008. “Tolkien’s Females and the Defining of Power” in J.R.R. Tolkien’s The Lord of the Rings. New Edition. Harold Bloom (ed.). New York: Infobase Publishing, pp. 171-186.
Fisher, Jason. 2006. “Reluctantly Inspired: George MacDonald and J.R.R. Tolkien” in North Wind, A Journal of George MacDonald Studies 25 (8), pp 113-120. Available: https://www.snc.edu/northwind/documents/By_genre_or_topic/Influences,_Contemporaries,_and_Collaborators/Reluctantly_Inspired=_George_MacDonald_and_J.R.R._Tolkien_-_Jason_Fisher.pdf. [Accessed 2019, August 15].
Hesser, Katherine. 2007. “Goldberry” in J.R.R. Tolkien Encyclopedia. Scholarship and Critical Assessment. Michael D.C. Drout (ed.). New York: Routledge, pp. 245-246.
Manlove, Colin. 2007. “The Princess and the Goblin and The Princess and Curdie” in North Wind: A Journal of George MacDonald Studies 26 (1), pp.1-37. Available: https://digitalcommons.snc.edu/northwind/vol26/iss1/1. [Accessed 2019, August 15].
McGillis, Roderick. 2017. “A Retrospective on George MacDonald: Poet, Novelist, Preacher” in North Wind, A Journal of George MacDonald Studies 36 (1), pp 1-42. Available: https://digitalcommons.snc.edu/cgi/viewcontent.cgi?article=1251&context=northwind [Accessed 2019, August 15].
Zlosnik, Sue. 2005. “Gothic Echoes” in Reading “The Lord of the Rings”. New Writings on Tolkien’s Classic. Robert Eaglestone (ed.). London: Continuum, pp.47-58.