Joanne E. Magge
Carswell, 1995
Buku Teks
Gunadi, author
[publisher not identified], 2001
Buku Teks
technical editors, Pok Soy Yoong, Ng Keat Seng, Steven M. Timms
Lexis Nexis, 2011
Buku Referensi
Ryan, K. W
Law Book Company, 1972
Buku Teks
Stanley, Joyce, 1901-, author
Warren, Gorham and Lamont, 1971
Buku Teks