Sachs, Jeffrey D.
Harvester, 1993
Buku Teks
Baten, Joerg
Cambridge University Press, 2016
Buku Teks
Tri Winarno
LP2M UNNES, 2018
Buku Teks
Arouri, Mohamed, editor
Academic Press, 2014
eBooks
edited Charles R. Blitzer, Peter B. Clark and Lance Taylor
Oxford University Press, 1977
Buku Teks