David J. Schaefer
发表
David J. Schaefer,
1977
.
David J. Schaefer,
1983
.
Brenda Dervin,
David J. Schaefer,
B. Dervin,
2009,
Ethics and Information Technology.
David J. Schaefer,
B. Dervin,
2011
.
David J. Atkin,
David J. Schaefer,
D. Atkin,
1991
.
David J. Schaefer,
Kavita Karan,
2010
.
David J. Schaefer,
A. Phang,
2007
.
David J. Schaefer,
Kavita Karan,
2020
.
David J. Schaefer,
A. Phang,
2009
.
David J. Schaefer,
2012
.
David J. Schaefer,
Kavita Karan,
2013
.
David J. Schaefer,
Kavita Karan,
Divya Anujan,
2012
.
David J. Schaefer,
Kavita Karan,
2011
.