[CJ-11-34]Impact Assessment of Technical Extension Through Farmer Field School: A Case of Greenhouse Tomato Farmers in Beijing

Author：　　Periodical： 　　Source：

Author：Xiao, Changkun, Ruifa Hu, Jinyang Cai, Fu Chan, Tao Zhang　　Periodical：Journal of China Agriculutural University, 2011, 16(4): 176-182.　　Source： ccap