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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The Oxford dictionary of world religions
edited by John Bowker
Oxford University Press, 1997
 Buku Referensi
Dictionary of world literary terms
edited by Joseph T. Shipley
Writer Publisher, 1979
 Buku Referensi
Drake, Ellen
Sloane' medical world book
Elsevier Saunder, 2012
 Buku Teks