Ranganna, S., author
McGraw-Hill, 1986
Buku Referensi
Alley, E. Roberts, author
Mcgraw-Hill, 2000
Buku Referensi
J.M. Juran, editor-in-chief; Frank M. Gryna, associate editor
McGraw-Hill, 1988
Buku Referensi
World Health Organization
World Health Organization, 1981
Buku Teks SO
CRC Press, 2010
Buku Teks