Vines, A.P.
Dept. of public health, 1970
Buku Teks
Elwood, Mark, author
Oxford University Press, 2010
Buku Teks
Miettinen, O.S., author
[, Springer], 2012
eBooks
Armstrong, Bruce K., author
Oxford University Press, 1994
Buku Referensi
Magnus, Manya, author
Jones & Bartlett Learning, 2016
Buku Teks