O’Brien, Kevin & Chen, Wayne: Reggae Routes. The Story of Jamaican Music, s. 243. Philadelphia: Temple University Press, 1998. ISBN 1-56639-629-8. Google Books. (englanniksi)
Murrell, Nathaniel Samuel & Spencer, William David & McFarlane, Adrian Anthony: Chanting Down Babylon: The Rastafari Reader, s. 32. Temple University Press, 1998. ISBN 978-1-56639-584-7. Google Books (viitattu 3.1.2014). (englanniksi)