edited by Richard P. Rumelt, Dan E. Schendel, David J. Teece
Harvard Business School Press, 1994
Buku Teks
Saloner, Garth
John Wiley & Sons, 2001
Buku Teks
Waidi
Elex Media Komputindo, 2006
Buku Teks
Dess, Gregory G.
Irwin, McGraw-Hill, 2004
Buku Teks
Zulfadil
2006
Artikel Jurnal