中国科学技术信息研究所--国家工程技术数字图书馆

walden university.(23)

capella university.(20)

capella university(10)

northcentral university.(10)

colorado technical university.(6)

northcentral university(5)

university of phoenix.(4)

alliant international university.(3)

grand canyon university.(3)

the chicago school of professional psychology.(3)

university of maryland college park.(3)

georgia state university.(2)

indiana state university.(2)

liberty university.(2)

oklahoma state university.(2)

the university of north carolina at greensboro.(2)

the university of wisconsin - milwaukee.(2)

university of idaho.(2)

university of la verne.(2)

university of maryland university college(2)

university of maryland university college.(2)

university of south florida.(2)

utica college.(2)

adler school of professional psychology.(1)

alabama state university(1)

alliant international university fresno.(1)

alliant international university san diego.(1)

alliant international university san francisco bay.(1)

ashford university.(1)

baylor university(1)