Goh Chok Tong, author
Ministry of Information, Communications and the Arts, 2004
Buku Teks
White, Jonathan R., 1975-2012, author
Wadsworth and Cengage Learning, 2012
Buku Teks
Abrams, Norman, 1924-2016, author
West, 2012
Buku Teks
Pichtel, John
CRC Press, 2011
Buku Teks
Jane's Information Group, 1999
Buku Referensi