クララ・ウォード
Ward-Royster, Willa, How I Got Over: Clara Ward and the World-Famous Ward Singers, Temple University Press, 1997, Paper ISBN 1-56639-490-2
Interview with Willa Ward, Philadelphia Inquirer, July 2, 2006,
Zolten, Jerry, Great God A'Mighty! The Dixie Hummingbirds: Celebrating the Rise of Soul Gospel Music Oxford University Press, 2003, ISBN 0-19-515272-7.
Viale, Gene D (2010). I Remember Gospel and I Keep On Singing. AuthorHouse. ISBN 978-1-4490-7681-8