Gaya APA

Tampubolon, Rober. (2005). Risk and system-based internal audit (text). Jakarta: PT Elex Media Komputindo.

Gaya Chicago

Tampubolon, Rober. Risk and system-based internal audit. text Jakarta: PT Elex Media Komputindo, 2005. .

Gaya MLA

Tampubolon, Rober. Risk and system-based internal audit. text Jakarta: PT Elex Media Komputindo, 2005. .

Gaya Turabian

Tampubolon, Rober. Risk and system-based internal audit. text Jakarta: PT Elex Media Komputindo, 2005. .