Gaya APA
ELDER, R, J., BEASLEY, M, S. (2009).
AUDITING and assurance services: .
Singapore:
Pearson Education South Asia.
Gaya MLA
ELDER, Randal, J.., BEASLEY, Mark, S..
"AUDITING and assurance services:".
Singapore:
Pearson Education South Asia,
2009.
Buku.