Bond, Helen J., author
Blackstone, 1990
Buku Teks
Lawson, R.G., author
Butterworth-Heinemann, 1992
Buku Referensi
Sudargo Gautama, author
FT Law & Tax Asia Pacific, 1997
Buku Teks
Marsh, S.B., author
McGraw-Hill, 1975
Buku Teks
Woon, Walter C. M., author
Prentice-Hall, 2000
Buku Teks