Titon, Jeff Todd;Cooley, Timothy J.. Worlds of Music: An Introduction to the Music of the World's Peoples. 5th. Belmont, CA:Schirmer Cengage Learning,2009. ISBN 978-0534595395. OCLC214315557.
Spring, Glenn;Hutcheson, Jere.. Musical Form and Analysis: Time, Pattern, Proportion. Long Grove, Illinois:Waveland Press,maig 2020. ISBN 978-1478607229. OCLC882602291.