Watchtower Bible and Tract Society of New York , 2004
Buku Teks
Stevenson, Burton, author
New York, Harper & Brothers
Buku Referensi
Missler, Chuck, author
Visimedia, 2006
Buku Teks
Jenney, Ray Freeman
Harper and Brothers , 1955
Buku Teks
Keene, Michael
Kanisius, 2006
Buku Teks