Gaya APA
Elder, R, J. et al (2009).
Auditing and Assurance Services : An Integrated Approach .
Singapore:
PEARSON PRENTICE HALL.
Gaya MLA
Elder, Randal, J. et al.
"Auditing and Assurance Services : An Integrated Approach".
Singapore:
PEARSON PRENTICE HALL,
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Textbook.