Chandran, Ravi
LexisNexis, 2010
Buku Teks
O`Connell, Jeffrey
Commerce Clearing House, 1971
Buku Teks
Poh Chu Chai
Butterworth, 1999
Buku Teks
Ivamy, E.R. Hardy
Butterworth, 1984
Buku Teks
Kongstvendt, Peter R.
Jones & Bartlet Learning, 2009
Buku Teks