【作者(必填)】Ewuziem, J E，Onyenobi, V O，Ironkwe, A G


【文题(必填)】Technical efficiency of pig farmers in Imo State Nigeria: a translog stochastic frontier production function approach.

【年份(必填)】2013

【全文链接或数据库名称(选填)】https://www.cabdirect.org/?target=%2fcabdirect%2fabstract%2f20143022786