McQuaig, Douglas J.
Houghton Mifflin, 1989
Buku Teks
Ross, J. F. S.
Eyre & Spottiswoode, 1955
Buku Teks
Eco, Umberto, author
Bentang, 2013
Buku Teks
Eco, Umberto, author
The Prague cemetery, 2012
Buku Teks
Linnaus, Vernon F.
Harcourt Brace Jovanovich, Inc., 1977
Buku Teks