Amstrong, David F.
Gesture and the nature of language
Cambridge University Press, 1995
 Buku Teks SO
Ruzui, Septy
A survey of relations between Indonesian, Malay and some Philippine languages / Septy Ruzui
Dewan Bahasa dan Pustaka, 1968
 Buku Teks SO
Sign languages
edited by Diane Brentari
Cambridge University Press, 2010
 Buku Teks SO
Lass, Roger
Fonologi: sebuah pengantar untuk konsep-konsep dasar=Phonology : an introduction to basic concepts
IKIP Semarang Press , 1984
 Buku Teks SO
Klaiman, M.H.
Grammatical voice
Cambridge University Press , 1991
 Buku Teks SO