Raden S. Nimpoeno
Tjarakan (Het Javaanse Alphabet)
J.B. Wolters, 1936
 Buku Klasik
Kalagan alphabet book ill. by
Manila: Summer Inst. of Linguistics, 1955
 Buku Teks
DeVries, Virginia H.
Semivowels in the Coyono alphabet
Bureau of Printing, 1967
 Buku Teks SO
Johnson, Elmer D.
Communication : a concise introduction to the history of the alphabet...
Scarecrow Press, 1955
 Buku Teks SO
The Korean alphabet : its history and structure
edited by Young-Key Kim-Renaud
University of Hawai`i Press, 1997
 Buku Teks