1. Jiang Qiyuan (2000) ‘The Piling up of the Gangue’, 99 the Cup of Chuangwei Mathematics Modelling Contest (The group of junior colleges), the practice and knowing of mathematics, 1, 3-4.
2. U.S.A. Mathematical Contest in Modelling (MCM) (2002) http://www.comap.com/undergraduate/contest
3. ‘Mathematics Experiment’;Xiao Shu,1997