Woytinsky, W.S.
Stormy passage a personal history through two Russian: revolutions to democracy and freedom: 1905-1960
Vanguard Press, 1961
 Buku Teks SO
Forster, Edward Morgan, 1879-1970
Two cheers for democracy
Harcourt, Brace, 1951
 Buku Teks SO
Palmer, Vance
The Passage
Longman Cheshire, 1981
 Buku Teks SO
Passage through time University of Malaya library 1957-1997
University of Malaya Library , 1997
 Buku Teks SO
Oberdorfer, Don
The two Koreas : a contemporary history
Basic Books, 2001
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