Gaya APA

Adrian, S, M, ;, L, P, T. (2012). Research Methods For Business Students Ed.6 (6). Inggris: Pearson Education Limited.

Gaya MLA

Adrian, Saunders, Mark, ;, Lewis, Philip;, Thornhill. "Research Methods For Business Students Ed.6". 6 Inggris: Pearson Education Limited, 2012. Text.