Holum, John R., author
John Wiley & Sons, 1987
Buku Teks
Holum, John R., author
John Wiley & Sons, 1994
Buku Teks
Stoker, H. Stephen, author
Allyn and Bacon, 1991
Buku Teks
McMurry, John, author
Prentice-Hall, 1994
Buku Teks
McMurry, John, author
Prentice-Hall, 1992
Buku Teks