Artikel Jurnal
Newman, Robert P.
Macmillan, 1961
Buku Teks
Goldstein, Steven M., author
Polity Press, 2015
Buku Teks
Sheng, Lijun, author
Institute of Southeast Asian Studies, 2001
Buku Teks
edited by John Ravenhill
Edward Elgar Publishing, 1995
Buku Teks