5Nelson, P. (1970) .Information and Consumer Behavior.Journal of Political Economy, Pp.311-329.
6Davis, G. & Ostrom, E. (1991). A Public Economy Approach to Education: Choice and Co-production.International Political Science Review, 12, Pp.313-335.
7Cave, M. (1985). Market Models and Consumer Protection, Journal of Consumer Policy, 335-351.
8Nelson, P (1970) .Information and Consumer Behavior.Journal of Political Economy, Pp.311-329.
9Davis, G & Ostrom, E (1991). A Public Economy Approach to Education: Choice and Co-production.International Political Science Review, 12, Pp.313-335.
10Cave, M (1985). Market Models and Consumer Protection, Journal of Consumer Policy, 335-351.
