Encyclopaedia of islamic philosophy
edited by M.Th. Houtsma, T.W. Arnold, R. Basset and R. Hartmann
Koros Press, 2011
 Buku Referensi
The encyclopaedia of birds
edited by Christopher M. Perrins and Alex L.A. Middleton
Grolier International, 1993
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Encyclopaedia of textiles
edited by P.V. Vidyasagar
Mittal Publications, 2000
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Slavonic encyclopaedia
edited by Joseph S. Roucek
Philosophical Library, 1949
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An Encyclopaedia of language
edited by N.E. Collinge
Routledge, 1990
 Buku Referensi