Dean, Burton V., author
John Wiley & Sons, 1963
Buku Teks
Lucking, Richard C., author
John Wiley & Sons, 1980
Buku Teks
Glyn James
Pearson Prentice Hall, 2008
Buku Teks
Wheeler, Ruric E., author
Brooks/Cole, 1969
Buku Teks
Craig, Robert T., author
Prentice-Hall, 1969
Buku Teks