TIMSS 1999 International Mathematics Report

Findings from IEA's repeat of the Third International Mathematics and Science Study at the eighth grade
Mullis, Ina V.S. Martin, Michael O. Gonzalez, Eugenio J. Gregory,Kelvin D. Garden, Robert A. O'Connor, Kathleen M. Chrostowski, Steven J. Smith, Teresa A.
Boston College , Chestnut Hill, MA (2000)
Findings from the TIMSS 1999 mathematics assessment at the eighth grade