Agha, Asif, 1961-
Cambridge University Press , 2007
Buku Teks
Cambridge University Press, 2007
eBooks
Cambridge University Press, 1982
eBooks
Fishman, Joshua A., author
Newbury House Publishers, 1972
Buku Teks
Malmstrom, Jean, author
Hayden Book Company, 1965
Buku Teks