Makarenko, A.S., author
Foreign Languages Publishing House, 1920
Buku Teks
Idrus Nasir Djajanidingrat
Ithaca, N.Y. : Cornell University, 1958,
Buku Teks
Mertins, Louis
University of Oklahoma Press , 1965
Buku Teks
Anderson, Chris, author
Headline Publishing Group, 2016
Buku Teks
Clymo, R. S, author.
Cambridge University Press, 2014.
Buku Teks