Chiswell, B.
John Wiley & Sons, 1969
Buku Teks
Kleinberg, Jacob
Heath and comp., 1960
Buku Teks
Wood, G.W.
Butterworth, 1960
Buku Teks
Day, M. Clyde, author
Reinhold Publishing & Co., 1962
Buku Teks
editor-in-chief, R. Bruce King
John Wiley & Sons, 1995
Buku Referensi