wikimedia
/
wikidata
/
Login
Register
TriplyDB
Wikidata
Browser
Table
SPARQL
Graphs
1
1
Services
1
1
Assets
0
0
Insights
Schema
BETA
Class frequency
Class hierarchy
0305-750X(94)90007-8
0305-750X(94)90007-8
http://dx.doi.org/10.1016/0305-750X(94)90007-8
Returns to investment in education: A global update
P356
Q56873773-AE7C0600-0B73-4425-AB58-71F0B0F170FF
P356
0305-750X(94)90007-8
http://dx.doi.org/10.1016/0305-750X(94)90007-8