Borkowski, Nancy, author
Jones & Bartlett Learning, 2016
Buku Teks
Black, Kenneth, author
Prentice-Hall, 2000
Buku Teks
edited by J. Timothy Harrington and Eric D. Newman
Springer, 2012
eBooks
edited by Tom Sorell
Routledge, 1998
Buku Teks
Louis Rubino, Salvador Esparza, Yolanda Reid Chassiakos, editor
Jones & Bartlett Learning, 2014
Buku Teks