Schapiro, J. Salwyn
The world in crisis : political and social movement in the twentieth century / J. Salwyn Schapiro
McGraw-Hill Book Company, Inc., 1950
Buku Teks
Perspectives on world
Routledge, 1992
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Mende, Tibor
World power in the balance / Tibor Mende
The Noonday Press, 1953
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Kegley, Charles William, Jr.
The global future : a brief infroduction to world politics
Wardsworth, 2010
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Decisions and diplomacy : essay in twentieth--century International history / edited by Dick Richardson and Glyn Stone
Routledge, 1995
Buku Teks