Rooke, Constance
The Law Society of Upper Canada, 1992
Buku Teks
Kaplan, Jeffrey P., author
Prentice Hall International, 1995
Buku Teks
Makkink, H.J., author
Nijgh and Van Ditmar, 1951
Buku Teks
Jespersen, Otto, author
George Allen and Unwin, 1933
Buku Teks
Greenbaum, Sidney
Longman , 1990
Buku Teks