J.J. Raj
The struggle for Malaysian independence / J.J. Raj
MPH Group, 2007
 Buku Teks
Atterbury, Paul
A golden adventure : the first 50 years of ULTRAMAR / Paul Atterbury, Julia MacKenzie
Hurtwood Press, 1985
 Buku Teks
Ascent
National University of singapore, 2008
 Majalah, Jurnal, Buletin
50 years 1948-1998 UN Peacekeeping
UN , 1999
 Buku Teks
Singapore-China relations : 50 years
edited by Zheng Yongnian, Lye Liang Fook
World Scientific, 2015
 Buku Teks