TY  - RPRT
TI  - Study habits and introversion-extroversion.
AU  - M Estabrook
AU  - R Sommer
PY  - 1966
DO  - 10.2466/pr0.1966.19.3.750
UR  - https://pubmed.ncbi.nlm.nih.gov/5981077/
ID  - 5981077
ER  -