Niebuhr, Reinhold
The nature and destiny of man: a Christian interpretation
Nisbet & Co., 1946
 Buku Teks SO
Kyoung, Bae-min, 1934-
A history of Christian Churches in Korea
Yonsei University Press, 2005
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Beasley, Norman
The cross and the crown: the history of Christian science
Buell, Sloan and Pearce, 1952
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Niebuhr, Reinhold
Faith and history comparison of Christian and modern views of history
Charles Scribner's Sons, 1949
 Buku Teks SO
Piggin, Stuart
Faith of steel a history of the Christian churches in Illawarra, Australia
University of Wollongong, 1984
 Buku Teks SO