Cohen, J.M. (John Michael), 1903-1989, author
Viking, 1993
Buku Referensi
Cohen, J.M. (John Michael), 1903-1989, author
Penguin Books, 1971
Buku Referensi
Oxford University Press, 2004
Buku Teks
Oxford University press , 1994
Buku Teks
Oxford university press , 1992
Buku Teks