Schulz, Ernest B
[publisher not identified], 1956
Buku Teks
Arblaster, Anthony, author
Open University Press, 1987
Buku Teks
Shi Biqiu, author
China Renmin University Press, 2015
eBooks
ISEAS, 1997
Buku Teks
edited by Brian Doherty and Marius de Geus
Routledge, 1996
Buku Teks