中国科学技术信息研究所--国家工程技术数字图书馆

university of washington.(8)

university of pittsburgh.(5)

the pennsylvania state university.(3)

university of california davis.(3)

arizona state university.(2)

drexel university.(2)

duke university.(2)

fashion institute of technology state university of new york.(2)

george mason university.(2)

purdue university.(2)

university of colorado at boulder.(2)

walden university.(2)

washington state university.(2)

american university.(1)

antioch university.(1)

capella university.(1)

carnegie mellon university.(1)

clemson university.(1)

colorado state university.(1)

colorado technical university(1)

cornell university.(1)

east carolina university(1)

ecole nationale d'administration publique universite du quebec (canada).(1)

edgewood college.(1)

illinois institute of technology.(1)

iowa state university(1)

john f. kennedy university.(1)

kansas state university.(1)

kent state university.(1)

kwara state university (nigeria).(1)