Bueche, F.
New York McGraw-Hill 1988,
Buku Teks
Hudson, William Henry, author
London George G. Harrap 1913
Buku Referensi
Riban, David M., author
McGraw-Hill, 1982
Buku Teks
Winter, Stephen S., author
Harper & Row, 1967
Buku Teks
Elliot, Diane L
Philadelphia Lippincott - Raven 1997,
Buku Teks