Smuul, Juhan
Foreign Language Publishing House, 1957
Buku Teks
Lebedev, V.
Foreign Languages Publishing House,, 1959
Buku Teks
Howkins, Adrian
Oxford University Press, 2017
eBooks
Wattimena, Reza Alexander Antonuis, 1983-
Ary Suta Center, 2020
Artikel Jurnal
Eastman, Joseph T.
Academic Press, 1993
Buku Teks