8Huang Jikun ,Cristina C D. Demand for Cereal Grains in Asia: the Effect of Urbanization[J]. Agricultural Economics, 1993 (8) : 89-103
9Cheng Fang, Beghin J C. Urban demand for edible oils and fats in China: evidence from household survey data working[D]. Ames:Iowa State University, 2000
10Adolf B. Evaluating the linearized almost ideal demand system [J]. Amer J Agr Econ,1994,76(11) :111-123