^ abcdefgBenward & Saker (2009). Music in Theory and Practice: Volume II, Glossary, p.359. Eighth Edition. ISBN978-0-07-310188-0. "Any chord in functional harmony that normally resolves to the dominant chord."
^Benjamin, Thomas; Horvit, Michael; Koozin, Timothy; and Nelson, Robert (2014). Techniques and Materials of Music, p.149, 176. Cengage Learning. ISBN9781285965802.
^ abCleland, Kent D. and Dobrea-Grindahl, Mary (2013). Developing Musicianship Through Aural Skills: A Holistic Approach to Sight Singing and Ear Training, p.255. Routledge. ISBN9781135173067.
^Bartlette, Christopher, and Steven G. Laitz (2010). Graduate Review of Tonal Theory, pp.73–6. New York: Oxford University Press. ISBN978-0-19-537698-2
^ abCaplin, William E. (2013). Analyzing Classical Form: An Approach for the Classroom, p.10. Oxford. ISBN9780199987306.
^Benjamin, Horvit, Koozin, and Nelson (2014), p.253.
^Forte, Allen (1979). Tonal Harmony in Concept and Practice, p.95. 3rd edition. Holt, Rinehart, and Winston. ISBN0030207568. "Similarly, VI often serves as a stepwise dominant preparation."
^Benjamin, Horvit, and Nelson (2007), p.239. "A progression analogous to IV-V."
^Caplin, William E. (1998). Classical Form: A Theory of Formal Functions for the Instrumental Music of Haydn, Mozart, and Beethoven, p.23. Oxford. ISBN9780199881758.