TY  - RPRT
TI  - A practitioner's guide to meta-analysis.
AU  - J A Durlak
AU  - M W Lipsey
PY  - 1991
DO  - 10.1007/bf00938026
UR  - https://pubmed.ncbi.nlm.nih.gov/1892130/
ID  - 1892130
ER  -