Georgetown University Press, 1972
Buku Teks SO
Corder, Stephen Pit
Penguin Books , 1973
Buku Teks
edited by Eric P. Hamp, Fred W. Householder, Robert Austerlitz
University of Chicago Press, 1966
Buku Referensi
edited by Martin Joos
University of Chicago Press, 1966
Buku Referensi
edited by Thomas A. Sebeok
Mouton, 1970
Buku Referensi