Christian, Gary D., author
John Wiley & Sons, 1977
Buku Teks
Christian, Gary D., author
John Wiley & Sons, 1986
Buku Teks
Milner, Oscar I.
Lewis , 1991
Buku Teks
Kotz, John C., author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Meier, Peter C.
John Wiley & Sons, 1993
Buku Teks