TY  - BOOK
AU  - Kulick, Edward,
AU  - Hu, P. Guillan,
TI  - Exmining the relationship between differential item functioning and item difficulty
AV  - QA371 K84
PY  - 1989///
CY  - New York
PB  - College entrance examination board
KW  - Ecuaciones diferenciales
ER  -