TY  - SER
AU  - Chiu, Ming Ming.
TI  - Classmate characteristics and student achievement in 33 countries: classmates' past achievement, family socioeconomic status, educational resources, and attitudes toward reading 
PY  - 2015///
KW  - Bronfenbrenner
KW  - Ecological system theory
KW  - Cross-cultural study
N1  - Psychology
ER  -