Lamb, Charles W.
Houghton Mifflin, 1987
Buku Teks SO
Clark, Mary Jo
Appleton & Lange, 1999
Buku Teks SO
Lamont, Douglas
Blackwell Publishers, 1996
Buku Referensi
Folks, J. Leroy
John Wiley & Sons, 1981
Buku Teks SO
Rakich, Jonathon S.
Health Professions Press, 1992
Buku Referensi