Davis, Frederick T, author
Cambridge University Press, 2019
eBooks
Wormer, Katherine Stuart van, author
Allyn and Bacon, 2000
Buku Teks
edited by Malcolm W. Klein and Katherine S. Teilmann
Sage, 1980
Buku Teks
edited by William B. Sanders and Howard C. Daudistel
Praeger, 1976
Buku Teks
Daudistel, Howard C., author
Holt, Rinehart and Winston, 1979
Buku Teks