Revesz, G.
The Origins and prehistory of language/G. Revesz
Longman, 1956
 Buku Teks
Hangeul: Korea's unique alphabet
Seoul Selection, 2010
 Buku Teks
Thornton, G.H.
Teach yourself : good English / G. H. Thornton; edited by Leonard Cutts
English Universities Press, 1950
 Buku Teks
Raden S. Nimpoeno
Tjarakan (Het Javaanse Alphabet)
J.B. Wolters, 1936
 Buku Klasik
Starr, Wilmarth H.
Spoken French and grammar review / Wilmarth H. Starr and Alfred G. Pellegrino
American Book Company, 1959
 Buku Teks