Paneth, Donald, author
Facts on File, 1983
Buku Referensi
Harris, Cyril M., author
W.W. Norton, 1998
Buku Referensi
Brucker, Herbert, author
Oxford University Press, 1973
Buku Teks
edited by Robert J. Janosik
Charles Scribner`s Sons, 1987
Buku Referensi
edited by Robert J. Janosik
Charles Scribner`s Sons, 1987
Buku Referensi