Munich : Institute for the Study of the USSR
Majalah, Jurnal, Buletin
Bayanov, B., author
Progress , [1968]
Buku Teks
[publisher not identified], 1967
Buku Teks
Reavey, Geoge
Lindsay Drummond, 1946
Buku Referensi
Makarenko, A.S., author
Progress Publishers, 1965
Buku Teks