edited by Allen D. Spiegel, Donald Rubin and Shelley B. Frost
Human Science Press, 1981
Buku Teks
Leslie Cromwell [and others]
Prentice-Hall, 1976
Buku Teks
Hicks, Lanis L., author
Jones & Bartlett Learning, 2014
Buku Teks
Allan, David
McGraw-Hill Higher Education, 2008
Multimedia
Allan, David M., author
McGraw-Hill, 2008
Buku Teks