Chiang, A. C. (1967), Fundamental Methods of Mathematical Economics, New York: McGraw Hill.
2.
Ditton, J. (1979), Contrology: Beyond the New Criminology, London and Basingstoke: Macmillan.
3.
Samuelson, P. A. (1939). `Interactions between the Multiplier Analysis and the Principles of Acceleration', Revue of Economics and Statistics, 21, pp. 75-78.
