Libby, Robert, author
Irwin /McGraw-Hill, 1998
Buku Teks
Libby, Robert, author
Irwin McGraw-Hill, 2001
Buku Teks
Welsch, Glenn A., author
Richard D. Irwin, 1984
Buku Teks
Huefner, Ronald J., author
Dryden Press, 1986
Buku Teks
May, George O., author
Macmillan, 1959
Buku Teks