Padden, Carol (2010), "Sign Language Geography", in Mathur, Gaurav; Napoli, Donna (eds.), Deaf Around the World(PDF), New York: Oxford University Press, pp. 19–37, ISBN978-0199732531, archived from the original(PDF) on June 3, 2011, retrieved November 25, 2012
Padden, Carol (2010), "Sign Language Geography", in Mathur, Gaurav; Napoli, Donna (eds.), Deaf Around the World(PDF), New York: Oxford University Press, pp. 19–37, ISBN978-0199732531, archived from the original(PDF) on June 3, 2011, retrieved November 25, 2012