Gaya APA

Arens, A, A. et al (2003). Auditing and assurance services an integrated approach ed. 9 (9). New Jersey: PearsonPrentice Hall.

Gaya MLA

Arens, Alvin, A.. et al. "Auditing and assurance services an integrated approach ed. 9". 9 New Jersey: PearsonPrentice Hall, 2003. Text.