Methods and procedures in TIMSS Advanced 2015
Martin, Michael O., Ina V. S. Mullis, and Martin Hooper, eds. “Methods and procedures in TIMSS Advanced 2015”, Chestnut Hill, Mass.: TIMSS & PIRLS International Study Center, Lynch School of Education, Boston College, 2016. http://hdl.handle.net/2345/bc-ir:109288.