Gaya APA
Barney, J, B.
(2007).
Gaining and Sustaining Competitive Advantage
(
Ketiga)
.
USA:
Pearson and Education.
Gaya MLA
Barney, Jay, B..
"Gaining and Sustaining Competitive Advantage".
Ketiga
USA:
Pearson and Education,
2007.
Teksbook.