Selvin, Steve
Pearson - Prentice Hall, 2004
Buku Teks
Indrayan, A.
Chapman & Hall/CRC, 2008
Buku Teks
Glantz, Stanton A.
McGraw-Hill, 1992
Buku Teks
Rosner, Bernard
Duxbury Press, 1986
Buku Teks
Murphy, Edmond A.
John Hopkins University Press, 1982
Buku Teks