TY - JOUR A1 - Arádi, I. A1 - Berki, E. A1 - Laslo, M. T1 - Some Theoretical Correlations between Private Enterprises and the Proportion of Income JF - D. Plecas (Ed.), Working Papers. Vol. 2, Osijek (Faculty of Education) and Pécs (Faculty of Education) 1988, pp. 173-184. Y1 - 1988 ER -