Kokkoris, Ioannis, author
Sweet & Maxwell, 2010
Buku Teks
Tillotson BA., John
Cavendish Publishing Limited, 1996
Buku Teks
Tom Kennedy
Sweet and Maxwell, 1994
Buku Teks
Brown, L. Neville (Lionel Neville), author
Sweet and Maxwell, 1994
Buku Teks
Merryman, John Henry, author
Bobbs-Merril, 1978
Buku Teks