TY  - SER
AU  - Torff, Bruce.                                  
TI  - Principals' perceptions of the causes of teacher ineffectiveness
PY  - 2005///
KW  - Alternative teacher-certification programs
KW  - Content knowledge
KW  - Pedagogical knowledge
KW  - Teacher quality
KW  - Underperforming schools
N1  - Psychology
ER  -