TY  - RPRT
TI  - Effects of state anxiety and task difficulty on computer-assisted learning.
AU  - H F O'Neil
AU  - C D Spielberger
AU  - D N Hansen
PY  - 1969
DO  - 10.1037/h0028323
UR  - https://pubmed.ncbi.nlm.nih.gov/5364288/
ID  - 5364288
ER  -