Auerbach Alan J., author
Brown & Benchmark, 1996
Buku Teks
Riggio, Ronald E., author
Pearson, 2009
Buku Teks
edited by Cary L. Cooper, Ivan T. Robertson
John Wiley & Sons, 1990
Buku Teks
edited by Cary L. Cooper, Ivan T. Robertson
John Wiley & Sons, 2000
Buku Teks
Bass, Bernard M., author
Allyn and Bacon, 1979
Buku Teks