edited by Ruslan Mitkov
Oxford University Press, 2004
Buku Referensi
Neijt, Anneke
Foris Publications, 1990
Buku Teks
Hays, David G.
American Elsevier puvlishing, 1967
Buku Teks
Boot, M.
Servire Katwijk , 1984
Buku Teks
by Adam PrzepiĆ³rkowski ... [et al.]
Springer, 2013
Buku Teks