Radebaugh, Lee H.
John Wiley & Sons, 1993
Buku Teks
Buckley, Peter J.
Macmillan, 1978
Buku Teks
Yoshino, Michael Y.
Harvard University Press, 1980
Buku Teks
edited by Xiaolan Fu, Pervenz N. Ghauri, Juha Vaatanen
Emerald, 2017
eBooks
Dunning, John H
Addison-Wesley , 1992
Buku Teks