J.M. Juran, editor-in-chief; Frank M. Gryna, associate editor
McGraw-Hill, 1988
Buku Referensi
Alley, E. Roberts
Mcgraw-Hill, 2000
Buku Referensi
World Health Organization
World Health Organization, 1981
Buku Teks
CRC Press, 2010
Buku Teks
Ernesto Fattorusso, William H. Gerwick, Orazio Tagliatela-Scafati
Springer , 2012
Buku Referensi