Robinson, Michael Edison
Korea's Twentieth-Century Odyssey : a short history
University Hawaii Press, 2007
 Buku Teks
Black, C.E.
Twentieth Century Europa: a history
Alfred A. Knopf, 1961
 Buku Teks SO
Black, C.E.
Twentieth Century Europe: a history
Alfred A. Knopf, 1966
 Buku Teks SO
Hou, Wai-Lu
A short history of Chinese philosophy
Foreign Languages Press, 1959
 Buku Teks SO
Fung, Yu-lan
A short history of chinese philosophy
Macmillan, 1953
 Buku Teks SO