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 Lisa M. Lee... [and others]
oxford Univ Press, 2010
Buku Teks