Milewski, Emil G., author
Research and Education Association, 1989
Buku Teks
Leininger, Madeleine M., author
McGraw-Hill , 2002
Buku Teks
Abrahamson, Mark, author
Prentice-Hall, 1981
Buku Teks
Stommel, Manfred, author
Lippincott Williams & Wilkins, 2004
Buku Teks
Hughes, Christina, author
Sage, 2002
Buku Teks