Ghista, Dhanjoo N., author
CRC Press, 2009
Buku Teks
Bahill, A. Terry, author
Prentice-Hall, 1981
Buku Teks
Wright, Samson
Oxford University Press, 1928
Buku Referensi
Wright, Samson
Oxford University Press, 1931
Buku Referensi
Wright, Samson, author
Oxford University Press, 1940
Buku Referensi