edited by Barbara Walton Spradley
J.B. Lippincott, 1997
Buku Teks
edited by Barbara Walton Spradley
Little, Brown, 1986
Buku Teks
Stanhope, Marcia
Mosby Elsevier , 2000
Buku Teks
Clark, Mary Jo
Prentice-Hall, 2003
Buku Teks
Clark, Mary Jo
Appleton & lange , 1999
Buku Teks