edited by Marion E. Howard
Drug Publications, 1955
Buku Referensi
Frank, Marcella, author
Prentice-Hall, 1972
Buku Teks
Irma Taavitsainen, Paivi Pahta, editor
Cambridge University Press, 2011
Buku Teks
Partridge, Eric, 1894-1979, author
Routledge, 1991
Buku Referensi
Weis, Erich, author
National Textbook Company, 1993
Buku Referensi