Stiebing, William H.
Oxford University Press, 1993
Buku Teks
Kelly, Robert L.,author
Wadsworth, 2010
Buku Teks
Mongait, Alexander, author
Foreign Languages Publishing House, 1959
Buku Teks
Sharer, Robert J., author
McGraw-Hill, 2003
Buku Teks
Trigger, Bruce G., author
Cambridge University Press, 2006
Buku Teks