edited by Geoffrey A. Hosking and George F. Cushing
Macmillan Press, 1989
Buku Teks
Charles Webel and Mark Tomass, editors
Routledge, Taylor & Francis Group, 2017
Buku Teks
Burton, Graeme
McGraw-Hill, 2010
Buku Teks
edited by Klaus Gottstein
Campus Verlag , 1992
Buku Teks
editorial board, Sarvepalli Radhakrishnan ... [et al.]
George Allen and Unwin, 1957
Buku Teks