English Arabic Dictionary of Medical terms,"tonsil of torus tubarius = tubal tonsil"[2], Almaany.com,2010-2014.
archive.org
Patricia Brady Wilhelm; Marieb, Elaine Nicpon; Mallatt, Jon (2005). Human anatomy. San Francisco: Pearson/Benjamin Cummings. p. 572. ISBN0-8053-5511-1.