TY  - BOOK
AU  - Ashton,Patricia T.
TI  - Making a difference: teachers' sense of efficacy and student achievement
SN  - 0582284805
U1  - 371.102 
PY  - 1986///
CY  - EUA
PB  - Longman
KW  - Educación
KW  - Métodos de estudio
ER  -