7Guo H D, Robert W J, Zhu J H. Contract farming in China: Perspectives of farm households and agribusiness firms [J]. Comparative Economic Studies, 2007, (49).
8Sachiko M, Nicholas M, Hu D. Impact of contract farming on income: Linking small farmers, packers, and su- permarkets in China [J]. World Development, 2009, (11).
9Barrett C B, Bachke M E, Bellemare M F, et al. Smallholder participation in contract farming: Comparative evidence from five countries [J]. World Development, 2012, (04).