Montagu, Ashley, 1905-1999, author
The World Publishing, 1964
Buku Teks
Baldwin, James, 1924-1987, author
Dell Publishing, 1963
Buku Teks
Myrdal, Gunnar, 1898-, author
Harper & Brothers , 1944
Buku Teks
edited by David Dabydeen
Manchester University Press, 1985
Buku Teks
Gerbrands, A. A.
E.J. Brill, 1957
Buku Teks