9Stephen W, Mbuvi J, Bruce Litchfield. Green soybeans as a vegetable: comparing green soybeans with green peas and Lima beans; and maximized harvest time determinations using mathematical modeling. Journal of Vegetable Crop Production, 1995,(1):99～121
10Gai J Y, Guo W T. History of maodou production in China. In Lumpkin T and S Shanmugasundaras, Proceedings and Conference Information of the Second International Vegetable Conference, Tacom, Washington, USA, 2001,41～47
