Baah, Asamoah
World Health Organization, 1995
Buku Teks
edited by Peter C. Smith, Laura Ginnelly and Mark Sculpher
Open University Press, 2005
Buku Teks
Kobelt, Gisela, author
Office of Health Economics, 2002
Buku Teks
Morris, Stephen, author
Prentice-Hall, 1998
Buku Teks
McDonald, Ruth, author
Open University Press, 2002
Buku Teks