Watson, Juanita
Davis, 1995
Buku Teks
Fischbach, Frances Talaska
J.B. Lippincott, 1996
Buku Teks
Corbett, Jane Vincent
Appleton & Lange, 1996
Buku Teks
Corbett, Jane Vincent
Appleton & Lange, 1992
Buku Teks
Chernecky, Cynthia C.
W.B. Saunders, 1997
Buku Referensi