1. L. R. Wilson and M. F. Tauber (1956). The University Library, p. 14. New York: Columbia University Press.
2. L. R. Wilson and M. F. Tauber (1956). The University Library, p. 16. New York: Columbia University Press.
3. “Tunisia” (1980). ALA Encyclopedia of Library and Information Services, p. 561. Chicago: American Library Association.
4. “Tunisia” (1980). ALA Encyclopedia of Library and Information Services. p. 561. Chicago: American Library Association.