Brown, Byron Wm
John Wiley & Sons, 1977
Buku Teks SO
Colquhoun, D.
Clarendom Press, 1971
Buku Teks SO
Campbell, Michael J.
John Wiley & Sons, 1999
Buku Teks SO
Samuel, Myra L.
Pearson - Prentice Hall, 2003
Buku Teks
Indrayan, A.
Chapman & Hall/CRC, 2008
Buku Teks SO