Gerstman, B. Burt
Massachusetts Jones & Bartlett Learning, 2015
Buku Teks
Freeman, Ruth B.
W.B. Saunders , 1969
Buku Teks
Friis, Robert H.
Jones and Bartlett Publishers , 2014
Buku Teks
Steven M. Teutsch, R. Elliot Churchill
Oxford University Press, 2000
Buku Teks
edited by Cathy E. Lloyd ... [and others]
SAGE Publications, 2007
Buku Teks