Athens, Lonnie H
Routledge, 1989
Buku Teks
Burdman, Geri Marr
Prentice-Hall, 1986
Buku Teks
Jackson, Robert Houghwout
Alfred A. Knopf, 1946
Buku Teks
Newman, Anne B., editor
[Springer, ], 2012
eBooks
edited by James E. Birren, R. Bruce Sloane
Prentice-Hall, 1980
Buku Teks