Alfaro-LeFevre, Rosalinda, author
Lippincott , 1998
Buku Teks
Perry, Anne Griffin, author
Mosby, 2007
Buku Teks
edited by Aileen MacLaren
Springhouse corporation, 1992
Buku Referensi
Porter, Lindsay, author
Porter Publishing, 1995
Buku Referensi
Baker, Sunny, author
Prentice-Hall, 1992
Buku Referensi