Wolf, Martin L., author
Philosophical Library, 1958
Buku Referensi
Sze, Mai-Mai, author
Routledge , 1957
Buku Teks
Whitaker, Steve
Quarto Publishing, 1994
Buku Referensi
Smith, Bernard, author
Oxford University Press, 1965
Buku Teks
Chung, Hyung-Min, author
Hollym, 2006
Buku Teks