Watchtower Bible and Tract Society of New York , 2004
Buku Teks
Lowery, Joseph
IDG Books Worldwide, 1999
Multimedia
Missler, Chuck, author
Visimedia, 2006
Buku Teks
Rosen, Larry D.
John Wiley & Son, 1997
Multimedia
Lowery, Joseph W., author
IDE Books Worldwide, 1999
Buku Teks