Fertakis, John P., author
Quorum Books, 1988
Buku Teks
Kent, Raymond P., author
Richard D. Irwin, Inc., 1967
Buku Teks
Emery, Douglas R., author
Prentice-Hall, 1997
Buku Teks
Emery, Douglas R., author
Prentice-Hall, 1997
Buku Teks
Raj, A. Besant C., author
Tata McGraw-Hill, 1988
Buku Teks