Ravel, Richard
Year Book Medical Publ. Comp., 1979
Buku Teks
Alcamo, I. Edward, author
Addison-Wesley, 1983
Buku Teks
World Health Organization, 1983
Buku Teks
Griffin & George, 1968
Buku Teks
by J. Vandepitte ... [et al.]
World Health Organization, 1991
Buku Teks