Lawrence Erlbaum Associates , 1992
Buku Teks
Dyckman, Thomas R., author
Prentice-Hall, 1986
Buku Teks
Wheelock, Keith
Frederick A. Praeger , 1960
Buku Teks
Dimatteo, Larry A, author
Cambridge University Press, 2005
Buku Teks
Alexander, Fred, 1899-1996, author
Nelson, 1967
Buku Teks