Johns, Dean., author
Strategic Information and Research Development Centre, 2011
Buku Teks
Johns, Dean., author
Strategic Information and Research Development Centre , 2009
Buku Teks
Johns, Dean, author
Strategic Information and Research Development Centre , 2010
Buku Teks
edited by R. Narayanan
Applied Science, c1983
Buku Teks
Adams, Jonathan
Academic Edition, 1998
Buku Teks