Stegeman, Cynthia A., author.
Elsevier Saunder, 2015
Buku Teks
Koren, Gideon author
McGraw-Hill, 2007
Buku Referensi
Aehlert, Barbara, author
McGraw-Hill, Higher Education, 2007
Buku Referensi
Dillon, Patricia M., author
F.A. Davis, 2004
Buku Teks
Haines, Stephen G.
HRD Press, 1998
Buku Teks