J.J. Raj
MPH Group, 2007
Buku Teks
translated by Tam Lye Suan
Director-General Department of Infomartion Malaysia, 2008
Buku Referensi
Kua, Kia Soong, author
Suaram Kommunikasi, 2011
Buku Teks
Paul Hainsworth, Stephen McCloskey, editor
Tauris Publishers, 2000
Buku Teks
Barber, Andrew, author
AB&A, 2007
Buku Referensi