Dallin, David J.
Hollis & Carter, 1951
Buku Teks
Boyle, Peter G.
Routledge, 1993
Buku Teks
Lensen, George Alexander
Sophia University, 1970
Buku Teks
Griffith, William E.
MIT Press, 1965
Buku Teks
Weigh, Ken Shen
The Coomercial Press , 1928
Buku Teks