Buckley, Peter J.
Macmillan, 1978
Buku Teks
Muchlinski, Peter
Oxford University Press, 2010
Buku Teks
edited by Xiaolan Fu, Pervenz N. Ghauri, Juha Vaatanen
Emerald, 2017
eBooks
Yoshino, Michael Y.
Harvard University Press, 1980
Buku Teks
ILO, 1984
Buku Teks