Directory of research in academic year 1995-96
National University of Singapore, [date of publication not identified]
 Buku Referensi
A world directory of criminological institutes / UNSDRI, United Nations Social Defence Research Institute.
Institute, 1974
 Buku Teks
Directory of research in academic year 1996-97
National University of Singapore, 1997
 Buku Teks SO
Japanese studies in South and Southeast Asia
The Japan Foundation
Japan Foundation, 2008
 Buku Teks SO
Research centers directory
edited by Karen Hill
Gale Research, 1990
 Buku Referensi