Ferguson, Ronald D., author
Macmillan, 1975
Buku Teks
Dugopolski, Mark, author
McGraw-Hill, 2004
Buku Teks
Dugopolski, Mark, author
McGraw-Hill, 2000
Buku Teks
Smith, Karl J., author
Brooks/Cole, 1976
Buku Teks
Drooyan, Irving, author
John Wiley & Sons, 1976
Buku Teks