editors, Richard C. Johnson, Henry Jasik
McGraw-Hill, 1987
Buku Referensi
Axelrod, Rise B., author
St. Martin's Press, 1997
Buku Referensi
Deglin, Judith Hopfer, 1950-, author
F.A. Davis, 1997
Buku Referensi
edited by Richard Keefe
Springer Healthcare, 2012
eBooks
Lester, James D. Sr., 1935-2006, author
Pearson, 2015
Buku Teks