1  1982. Heterogeneity and State Dependence, NBER Reprints 0298

http://ideas.repec.org/p/nbr/nberre/0298.html

2  Sending Farmers Back to School: The Impact of Farmer Field Schools in Indonesia

http://econpapers.repec.org/article/blaragrec/v_3A26_3Ay_3A2004_3Ai_3A1_3Ap_3A45-62.htm

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