Drake, Stillman
University of Toronto Press, 1999
Buku Teks
Galilei, Galileo, 1564-1642.
Random Haouse , 1957
Buku Teks
Drake, Stilman, author
Pustaka Utama Grafiti, 1994
Buku Teks
Butterfield, Herbert
The Free Press , 1957
Buku Teks
Singer, Charles, author
Clarendon Press, 1962
Buku Teks