Colquhoun, D.
Clarendom Press, 1971
Buku Teks
McMillan Public Comp, 1987
Buku Teks
Selvin, Steve
Pearson - Prentice Hall, 2004
Buku Teks
Indrayan, A.
Chapman & Hall/CRC, 2008
Buku Teks
edited by Rupert G. Miller...[et al.]
John Wiley & Sons, 1980
Buku Teks