edited by Robert Keith Johnson
Cambridge University Press, 1994
Buku Teks
Saylor, J. Galen
Holt, Rinehart and Winston, 1981
Buku Teks
Thornton, Geoffrey
Edward Arnold, 1980
Buku Teks
Keating, Sarah B
Lippincott Williams & Wilkins, 2006
Buku Teks
edited by Limon E. Kattington
Nova Science, 2010
Buku Teks