Wooside, Gayle, author
McGraw-Hill, 1998
Buku Referensi
Bitton, Gabriel, author
John Wiley & Sons, 1997
Buku Referensi
edited by John Fawcett
World Vision, 2003
Buku Teks
edited by Lee Harrison
McGraw-Hill, 1997
Buku Referensi
Jay H. Lehr, editor ; Janet K. Lehr, associate editor
McGraw-Hill, 2000
Buku Referensi