Anderson, Philip O., editor
McGraw-Hill, 2002
Buku Referensi
Hodgson, Barbara B., author
W.B. Saunders, 1997
Buku Referensi
Hodgson, Barbara B., author
Saunders Elsevier, 2009
Buku Referensi
edited by Richard L. Wynn [and 2 others]
Lexicomp, 2016
Buku Referensi
Shannon, Margaret T.
Prentice-Hall, 2001
Buku Referensi