OpenStax9
Saylor Foundation5
LibreTexts2
SUNY2
A.T. Still University1
Bowling Green State University Libraries1
Doba1
Dowdre, Paul R.1
Grand Valley State University Libraries1
IntechOpen1
MIT1
Noba1
Ohio State University1
Open Logic Project1
OpenDSA1
Oregon State University1
PALNI Press1
Portland State University Library1
Princeton University1
Rice University1