中国科学技术信息研究所--国家工程技术数字图书馆

michigan state university.(7)

the ohio state university.(5)

florida agricultural and mechanical university.(3)

iowa state university.(3)

oklahoma state university.(3)

university of southern california.(3)

michigan state university(2)

oklahoma state university(2)

texas a&m university.(2)

the florida state university.(2)

the university of tennessee.(2)

the university of wisconsin - madison.(2)

andrews university(1)

delta state university.(1)

duquesne university(1)

indiana university of pennsylvania.(1)

indiana university.(1)

new mexico state university.(1)

north carolina agricultural and technical state university.(1)

quinnipiac university.(1)

regent university.(1)

southern illinois university at carbondale.(1)

southern university and agricultural and mechanical college(1)

the florida state university(1)

the ohio state university(1)

the southern baptist theological seminary.(1)

the university of arizona(1)

the university of north carolina at charlotte(1)

the university of southern mississippi.(1)

university of arkansas.(1)