Lientz, Bannet P.
Times Mirror Mosby College Publishing, 1987
Buku Teks
Lientz, Bennet P.
Elsevier, 2004
Buku Teks
Pardoe, T. D.
McGraw-Hill, 1992
Buku Referensi
Stallings, William, author
Prentice-Hall, 2001
Buku Teks
Dennis, Alan, 1951-, author
John Wiley & Sons, 2012
Buku Teks