Yakhontoff, Victor A.
Coward-McCann, 1945
Buku Teks
Roitburd, Lazar
Moscow, Foreign Languages Pub.
Buku Teks
Progress Publishers, 1977
Buku Teks
Lensen, George Alexander, author
Sophia University, 1970
Buku Teks
Smele, Jon, author
Oxford University Press, 2016
eBooks