A. F. Al-Assaf
World Health Organization, 2001
Buku Teks
Porter, Michael E.
Springer-Verlag, 2012
eBooks
Heidemann, E.G.
World Health Organization, 1993
Buku Teks
Egdahl, Richard H.
Aspen Systems, 1976
Buku Teks
Sultz, Harry A.
Jones & Bartlett Learning, 2014
Buku Teks