8Miles Cahill and George Models Using Excel [J]. Kosicki. Exploring economic Southern Economic Journal, 2000, (3) : PP.770-792.
9Soumaya M. Tohamy and J. Wilson Mixon Jr.. Lesson from the Specific Factors model of international trade[J]. the Journal of economic Education,2003, (2) :PP.139-150.
10Soumaya M. Tohamy and J. Wilson Mixon Jr.. Illustrating Consumer Theory with the CES Utility Function [J].the Joumal of Economic Education,2004, (3) :PP.251-258.