TIMSS 2011 Encyclopedia
Education policy and curriculum in mathematics and science (Vols. 1-2)
Martin, Michael O.
Minnich, Chad A.
Mullis, Ina V.S.
Stanco, Gabrielle M.
Arora, Alka
Centurino, Victoria A.S
Castle, Courtney E.
Boston College , Chestnut Hill, MA (2012)
