Gaya APA

Stimpson, P., Farquharson, A. (2015). Cambridge International AS and A level Business Coursebook . Singapore: CAMBRIDE UNIVERSITY PRESS.

Gaya MLA

Stimpson, Peter., Farquharson, Alastair. "Cambridge International AS and A level Business Coursebook". Singapore: CAMBRIDE UNIVERSITY PRESS, 2015. Text.