Piggin, Stuart
Faith of steel a history of the Christian churches in Illawarra, Australia
University of Wollongong, 1984
 Buku Teks SO
Caravan, Jill
American Country churches: a pictorial history
Todtri Production Limited, 1996
 Buku Referensi
A history of Korea
Korea Historical Research Association
Saffron, 2005
 Buku Teks
Sohn, Pow-key
The history of Korea
Korea National Commision for Unesco, 1984
 Buku Teks SO
Han, Woo-keun
History of Korea
The Eul-Yoo, 1971
 Buku Teks SO