1.
Theoretical and Empirical Studies of Producer Cooperatives: Will Ever the Twain Meet?
by Bonin, John P
Journal of economic literature, 1993-09-01, Vol.31 (3), p.1290-1320

2.
CHOICE AND EFFICIENCY IN A MODEL OF DEMOCRATIC SEMI-COLLECTIVE AGRICULTURE
by PUTTERMAN, LOUIS
Oxford economic papers, 1985-03, Vol.37 (1), p.1-21

3.
Economic Motivation and the Transition to Collective Socialism: Its Application to Tanzania
by Putterman, Louis
The Journal of modern African studies, 1982-06, Vol.20 (2), p.263-285
