Arias, kathleen Meehan
Jones and Bartlett Learning, 210
Buku Teks
Brown, Montague, author
Aspen Systems Corporation, 1976
Buku Teks
Lapatra, J.W.
Charles C. Thomas, 1975
Buku Teks
World Health Organization, 1996
Buku Teks
edited by Richard H. Egdahl
Springer-Verlag, 1977
Buku Teks