The new book of popular science : volume 1 technology index
Danbury : Grolier, 1994
Buku Referensi
Gribbin, John
Almost everyone?s guide to science : the universe, life, and everything
Yale University Press, 1999
Buku Referensi
Bryson, Bill
A short history of nearly everything
Broadway Books, 2004
Buku Teks
Bryson, Bill
A short history of nearly everything
Broadway Books, 2003
Buku Teks
Hall, Stephen S.
Mapping the next millennium : the discovery of new geographies / Stephen S. Hall
Random House, 1992
Buku Teks