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