Purnell Hopson
发表
John J. Chapman,
Purnell Hopson,
Nancy M. H. Kruse,
1995
.
Allan J. Zuckerwar,
Purnell Hopson,
Qamar A. Shams,
2003
.
Purnell Hopson,
Debra L. Carraway,
C. B. Johnson,
1987
.