by Dieter J. von Willert ... [et al.]
Cambridge University Press, 1992
Buku Teks
Reiss, Michael
University Press, 2000
Buku Teks
Mader, Sylvia S.
McGraw-HIll, 1996
Buku Teks
by Robert J. Brooker ... [and others]
McGraw-Hill, 2008
Buku Teks
Raven, Peter H.
WCB, McGraw-Hill, 1996
Buku Teks