Huxley, Julian, compiler
A Mentor Book, 1957
Buku Teks
Blackham, H.J.
Routledge Kegan Paul LTD, 1953
Buku Teks
Coats, Willson H.
McGraw-Hill, 1966
Buku Teks
Julien, Benda, author
The Beacon Press, 1955
Buku Teks
Praag, J.P. van, author
Uitgeverij Contact, 1947
Buku Teks