Thomson, Stephen
Prentice-Hall, 1989
Buku Teks
Nelson, John H.
Prentice-Hall, 1997
Buku Teks
Sousa, John J., author
Rhode Island Consortium, 1990
Buku Teks
Bettelheim, Frederick A., author
Harcourt Brace Jovanovich College, 1991
Buku Teks
Beran, J.A., author
John Wiley & Sons, 2009
Buku Teks