by C. Roland Christensen [and others]
Richard D. Irwin, 1982
Buku Teks
Philippatos, George C., author
Allyn and Bacon, 1991
Buku Teks
Garvin, David A., author
Prentice-Hall, 1992
Buku Teks
Voris, William, author
Richard D. Irwin, 1956
Buku Teks
Boyd, Harper W., Jr., author
Richard D. Irwin, 1977
Buku Teks