Latourette, Kenneth Scott, author
Penguin Books, 1954
Buku Teks
Gelernter, Marck
: Manchester University Press , 1995
Buku Teks
Drew, Philip, author
Law Book Company Limited, 1985
Buku Referensi
Li, En, author
Elex Media Komputindo, 2013
Buku Teks
Lattimore, Owen, 1900-, author
Franklin Watts, 1944
Buku Teks