TY  - RPRT
TI  - Causal analysis of academic performance.
AU  - D C Rao
AU  - N E Morton
AU  - R C Elston
AU  - S Yee
PY  - 1977
DO  - 10.1007/bf01066003
UR  - https://pubmed.ncbi.nlm.nih.gov/869856/
ID  - 869856
ER  -