Kompaneyets, A.S.
Foreign Language Publishing, 1961
Buku Teks
edited by M. Laznicka, M. Laznickz
Elsevier, 1982
Buku Teks
Filonenko-Borodich, M.
Foreign Languages, 1975
Buku Teks
Univeriste de Liege, 1971
Buku Teks
Rudden, M.N., author
John Wiley & Sons, 1980
Buku Teks