References

    Maryland State Department of Education [MSDE] (1990). The Maryland School Performance Program: Social studies outcome model. Baltimore: MSDE

     Maryland State Department of Education [MSDE] (1996).
Maryland School Performance Program: Social studies learning outcomes: Clarification of outcomes and indicators.  Baltimore: MSDE

     National Council on Economics Education. (1998).
Voluntary national content standards in economics. New York: NCEE (On-line) Available: www.economicsamerica.org/nctext.html

     Saunders, P., Bach, G., Calderwood, J.D., & Hansen, W.L. (1984). 
Master curriculum guide in economics: A framework for teaching the basic concepts.  New York: Joint Council on Economic Education.