Skolnik, Richard, author
Jones and Bartlett Learning, 2012
Buku Teks
General editor, Yawei Zhang
Sage Publications, 2008
Buku Referensi
Jacobsen, Kathryn H., author
Jones & Bartlett Learning, 2014
Buku Teks
Colin D. Butler, editor
CABI, 2016
Buku Teks
edited by Tee L. Guidotti ; associate editors, Jorma Rantanen
Oxford University Press, 2011
Buku Teks