很不错的入门介绍 "an introduction to efficiency and productivity analysis".by tim coelli,d.s.prasada rao,george e.battese(1998)kluwer academic publishers.London
很不错的入门介绍 "an introduction to efficiency and productivity analysis".by tim coelli,d.s.prasada rao,george e.battese(1998) kluwer academic publishers.London