Pitchford, Paul, author
North Atlantic Books, 2002
Buku Teks
Lipson, Elaine, author
Contemporary, 2001
Buku Teks
Aluko, Rotimi E., author
Springer, 2012
eBooks
edited by Edward R. Farnworth
CRC Press, Taylor & Francis Group, 2008
Buku Referensi
edited by Leo M.L. Nollet, Fidel ToldraĆ
CRC Pres, [2009;2009;2009, 2009]
Buku Referensi