Bird, Eric
John Wiley & Sons, 2008
Buku Teks
Masselink, Gerhard, author
Hodder Education, 2011
Buku Teks
Haslett, Simon K., author
Routledge, 2009
Buku Teks
Subramanian, V., editor
Springer, 2012
eBooks
Black, John A.
Wm.C. Brown Publishers, 1986
Buku Teks