Wharton on dynamic competitive strategy / editors, George S. Day and David J. Reibstein with Robert E. Gunther. (1992). New York, NY: John Wiley & Sons, c.
Wharton on dynamic competitive strategy / editors, George S. Day and David J. Reibstein with Robert E. Gunther. . New York, NY: John Wiley & Sons, c, 1992. Buku Wajib.