edited by Barbara Walton Spradley
Little, Brown, 1986
Buku Teks
Hitchcock, Janice E.
Delmar, 1999
Buku Teks
Bailliere Tindall, 1996
Buku Teks
Smith, Claudia M.
W.B. Saunders , 2000
Buku Teks
Allender, Judith Ann
Wolters Kluwer, Lippincott Williams & Wilkins, 2010
Buku Teks