Cronin, Patricia, author
Mosby , 2004
Buku Teks
Robinson, Kate, author
Butterworth-Heinemann, 1998
Buku Teks
Campbell, Claire, author
Delmar , 1984
Buku Teks
Campbell, Claire, author
John Wiley & Sons, 1978
Buku Referensi
Lindeman, Carol A., author
WB Sounders company , 1999
Buku Teks