Lauwers, Judith, author
Jones and Bartlett, 2005
Buku Teks
Lauwers, Judith
MA Jones Bartlett Learning, 2011
Buku Teks
Webdy R.Uhlmann, Jane L. Schuette, Baverly M. Yashar, Beverly M., editor
John Wiley & Sons, 2009
Buku Teks
Guttmann, H. Peter, author
McGrow-Hill , 1976
Buku Teks
Briggs, Gerald G., author
Wolters Kluwer, 2008
Buku Referensi