Hitt, Michael A., author
Thomson, South-Western, 2007
Buku Teks
Hodgetts, Richard M., author
John Wiley & Sons, 1980
Buku Teks
David, Fred R.
Pearson, 2017
Buku Teks
Zentes, Joachim, author
Gabler Verlag, 2011
eBooks
David, Fred R., author
Pearson, 2015
Buku Teks