Bold, Harold Charles, 1909-
Prentice-Hall, 1985
Buku Referensi
Johnson, Martin H.
Blackwell Science, 2000
Buku Teks
Honnor, Sylvia
Arnold-Wheaton, 1986
Buku Teks
Fritsch, F.E.
Vikas, 1979
Buku Teks
Pinon, Ramon
University Science Books, 2002
Buku Teks