Roemer, Milton I., author
Health Administration Press, 1976
Buku Teks
Roemer, Milton I., author
Oxford University Press, 1993
Buku Teks
Faulkner, Ann, author
Chapman & Hall, 1995
Buku Teks
Fry, John, 1922-
MTP Press , 1978
Buku Teks
edited by Gary E. Day and Sandra G. Leggat
Cambridge University Press, 2015
Buku Teks