McGowan, Maryrose, author
John Wiley & Sons, [Date of publication not identified]
Buku Teks
McGowan, Maryrose, author
John Wiley & Sons, 1996
Buku Teks
Kubba, Sam, author
McGraw-Hill, 2003
Buku Teks
Kubba, Sam, author
McGraw-Hill, 2003
Buku Teks
Delmon, Jeffrey, author
Sweet & Maxwell, 2000
Buku Teks