Gordon, Marjory
Mosby , 1994
Buku Teks
edited by Janet W. Griffith, Paula J. Christensen
Mosby, 1982
Buku Teks
Bailliere tindall , 1982
Buku Teks
Monica, Elaine L.
Addison-Wesley, 1979
Buku Teks
edited by Helen Yura
Appleton-century-crofts, 1978
Buku Teks