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Economics
Ruggles, Nancy D., (1970)
Einsatz von Prozeßrechnern
Fickel, W., (1971)
La "nueva historia económica" o "historia econométrica" y sus métodos
Anes Alvarez, Gonzalo, (1969)
The demand, income function : a study in aggregation
El-Imam, M. M., (1968)
Economic models : analytical models and the decision-making problems ; Operations Research Center
El-Imam, M. M., (1965)
Foreign loans and economic development
El-Imam, M. M., (1967)