Rawlins, Ruth Parmelee
Mosby , 1993
Buku Teks
edited by Charlie Brooker and Julie Repper
Balliere Tindall, 1998
Buku Teks
Varcarolis, Elizabeth M.
Saunders Elsevier, 2006
Buku Teks
Clinton, Michael
Sydney Prentice Hall 1996 ,
Buku Teks
editors, Dianne C. Longo, Reg Arthur Williams
Appleton-Century-Crofts, 1986
Buku Teks