Douglas-Young, John
Prentice-Hall, 1983
Buku Referensi
Weyerer, Manfred
Prentice-Hall, 1992
Buku Teks
Jones, Martin Hartley, 1942-
Cambridge University Press, 1985
Buku Teks
Chirlian, Paul M.
McGraw-Hill, [1965]
Buku Teks
Holt, Charles A.
John Wiley & Sons, 1978
Buku Teks