Mader, Sylvia S.
McGraw-HIll, 2001
Buku Teks SO
by Robert J. Brooker ... [and others]
McGraw-Hill, Higher Education, 2008
Buku Teks
Raven, Peter H.
WCB, McGraw-Hill, 1996
Buku Teks
Mader, Sylvia S.
McGraw-Hill , 1998
Buku Teks
Jones, Mary
Cambridge University, 1996
Buku Teks