There is a few villages in the world where indigenous sign language is primarily used in a hearing community. Kata Kolok is one of these.
Kata Kolok is a name of the sign language which is used in two neighbouring villages in northern Bali, Indonesia. Despite the fact that there are only fifty deaf people in the main village, sign language is used by most (two-thirds) of the approximately 2,000 hearing villagers as well. (Branson)
Branson, Jan, Don Miller, I Gede Marsaja and I Wayan Negara (1996). Everyone Here Speaks Sign Langugae Too: A Deaf Village in Bali, Indonesia.
"Kata Kolok: Language". Max Planck Institute for Psycholinguistics. http://www.mpi.nl/research/groups/LanguageAndCognition/fieldsites/kata_lang
Marsaja, I. G. (forthcoming). Desa Kolok - A deaf village and its sign language in Bali, Indonesia. Nijmegen: Ishara Press.
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