translated by Tam Lye Suan
Director-General Department of Infomartion Malaysia, 2008
Buku Referensi
Miksic, John N., author
Periplus Editions , 1994
Buku Referensi
Korda, Philippe, 1960-, author
Buisiness Expert Press, 2012
Buku Teks
Ashley, Maurice, author
Frederick A. Praeger, 1969
Buku Teks
MacLean, Alistair
Collins , 1962
Buku Teks