中国科学技术信息研究所--国家工程技术数字图书馆

university of phoenix.(6)

northcentral university.(4)

walden university.(4)

capella university.(2)

nova southeastern university.(2)

the university of nebraska - lincoln.(2)

the university of north carolina at chapel hill.(2)

university of phoenix(2)

walden university(2)

wilmington university (delaware).(2)

andrews university.(1)

azusa pacific university.(1)

boston college.(1)

boston university.(1)

california southern university.(1)

indiana university(1)

iowa state university.(1)

lawrence technological university.(1)

maharaja sayajirao university of baroda (india)(1)

maharaja sayajirao university of baroda (india).(1)

mcmaster university (canada)(1)

north carolina state university(1)

royal roads university (canada).(1)

southern illinois university at carbondale.(1)

st. thomas university.(1)

state university of new york at buffalo.(1)

texas a&m university.(1)

the claremont graduate university.(1)

the university of oklahoma.(1)

the university of southern mississippi(1)