Gaya APA
Hall, J, A., Singleton, T. (2005).
Information Technology Auditing and Assurance 2 edition (2).
USA:
Thomson South Western.
Gaya MLA
Hall, James, A.., Singleton, Tommie.
"Information Technology Auditing and Assurance 2 edition".
2
USA:
Thomson South Western,
2005.
Textbook.