TIMSS 2007
Martin, Michael O., Ina V. S. Mullis, and Pierre Foy, eds. “Findings from IEA's Trends in International Mathematics and Science Study at the fourth and eighth grades”, Chestnut Hill, MA: TIMSS & PIRLS International Study Center, Lynch School of Education, Boston College, 2008. http://hdl.handle.net/2345/bc-ir:105049.