The Slavonic languages
edited by Bernard Comrie and Greville G. Corbett
Routledge, 1993
 Buku Teks
Bray, R.G.A. de
Guide to the Slavonic languages
J.M. Dent & Sons, 1951
 Buku Teks
The encyclopaedia of birds
edited by Christopher M. Perrins and Alex L.A. Middleton
Grolier International, 1993
 Buku Referensi
Encyclopaedia of textiles
edited by P.V. Vidyasagar
Mittal Publications, 2000
 Buku Referensi
An encyclopaedia of philosophy
general editor, G.H.R. Parkinson; associate editors, T.E. Burke, J.G. Cottingham, M.A. Proudham and J.E. Tiles
Routledge, 1988
 Buku Referensi