Schiffman, Harold F.
Routledge, 1996
Buku Teks SO
Ahearn, Laura M. author
John Wiley & Sons, Incorporated,, 2016
Buku Teks SO
Vendryes, J. (Joseph), 1875-1960
Routledge, 1996
Buku Teks SO
edited by Alessandro Duranti
Blackwell Publishing, 2006
Buku Teks SO
Sandler, Wendy
Cambridge University Press, 2006
Buku Teks SO