Dawson-Saunders, Beth, author
Prentice-Hall, 1990
Buku Teks
Campbell, Michael J., author
John Wiley & Sons, 1999
Buku Teks
Gerstman, B. Burt, author
Massachusetts Jones & Bartlett Learning, 2015
Buku Teks
Sokal, Robert R., author
W.H. Freeman, 1969
Buku Teks
Finney, D.J.
Chapman & Hall, 1980
Buku Teks