Keilhau, Wilhelm
Principles of private and public planning a study in economic sociology
George Allen & Unwin, 1951
 Buku Teks
Lewis, William Arthur, 1915-
The principles of economic planning a study prepared for the Fabian society
George Allen & Unwin, 1951
 Buku Teks
Boulding, Kenneth Ewart, 1910-1993
Principles of economic policy
Prentice-Hall, 1958
 Buku Teks SO
Lewis, William Arthur, 1915-
Development planning : the essentials of economic policy
Harper & Row, 1966
 Buku Teks SO
Lewis, William Arthur, 1915-
The principles of economic planning: a study prepared for the Fabian Society
Unwin University Books, 1970
 Buku Teks SO