Bell, Richard
T & T Clark, 1939
Buku Teks
Bell, Richard
The Edinburgh University Press , 1953
Buku Teks
Darul Fikri, 2007
Buku Referensi
Muthahhari, Murtadha, author
Sadra International Institute, 2011
Buku Teks
James, David, author
Thames and Hudson, 1988
Buku Teks