Angier, Bradford, author
Stackpole Books, 1992
Buku Teks
Peterson, Lee Allen, author
Houghton Miffiln, 1977
Buku Teks
edited by U.P. Hedrick
Dover Publications, 1972
Buku Referensi
Springer, 2012
eBooks
Martin, Edward C.
Wesport: AVI, c1983
Buku Referensi