Gaya APA
Collis, D, J., Montgomery, C, A. (2011).
Corporate Strategy A Resource Based Approach (Second Edition).
new york:
McGraw-Hill.
Gaya MLA
Collis, David, J.., Montgomery, Cynthia, A..
"Corporate Strategy A Resource Based Approach".
Second Edition
new york:
McGraw-Hill,
2011.
Text.