World dictionary of awards and prizes
Europa Publications Limited
Europa Publications Limited, 1979
 Buku Referensi
Iannone, A. Pablo
Dictionary of world philosophy
Routledge, 2001
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Dictionary of world literary terms
edited by Joseph T. Shipley
Writer Publisher, 1979
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The Oxford dictionary of world religions
edited by John Bowker
Oxford University Press, 1997
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Drake, Ellen
Sloane' medical world book
Elsevier Saunder, 2012
 Buku Teks