Kohler, Heinz
Readings in economics
Alfred A. Knoff , 1961
 Buku Teks SO
Readings in economics
edited by Paul A. Samuelson
McGraw-Hill, 1970
 Buku Teks SO
Hailstones, Thomas J.
Readings in economics
South-Western Publishing, 1974
 Buku Teks SO
Readings on taxation in developing countries
edited by Richard M. Bird and Oliver Oldman
Johns Hopkins Press, 1964
 Buku Teks
Readings on taxation in developing countries
edited by Richard M. Bird
John Hopkins University Press, 1975
 Buku Teks SO