Spradley, Barbara Walton, author
Little, Brown , 1985
Buku Teks
Bailliere Tindall, 1996
Buku Teks
Smith, Claudia M., author
W.B. Saunders , 2000
Buku Teks
edited by Joanne E. Hall, Barbara R. Weaver
J.B. Lippincott , 1977
Buku Teks
Clemen-Stone, Susan, author
Mosby, 2002
Buku Teks