Kay, David A., author
Neb Cliffs Notes, 1994
Buku Teks
Bruce, William J., author
Appleton-Century-Crofts, 1971
Buku Teks
Marcus, Marvin, author
Houghton Mifflin, 1970
Buku Teks
Hestenes, Marshall D., author
Prentice-Hall, 1982
Buku Teks
Rice, Bernard J., author
Prindle, Weber & Schmidt, 1975
Buku Teks