Sandler, Wendy
Sign language and linguistic universals
Cambridge University Press, 2006
Buku Teks
Linguistic universals / edited by Ricardo Mairal and Juana Gil
Cambridge University Press, 2006
eBooks
Explaining language
edited by John A. Hawkins
Basil Blackwell, 1988
Buku Teks SO
Chambers, Diane P.
Communicating in sign : creative ways to learn American sign language (ASL)
A Fireside Book, 1998
Buku Teks
Language universals : papers from the conference held at Gummersbach/Cologne, Germany, October 3-8, 1976 / Hansjakob Seiler
Narr Verlag , 1978
Buku Teks SO