Wilson, Kathleen J. W., author
Churchill Livingstone , 1996
Buku Teks
Weis, Gregory L, author
Prentice Hall, 1996
Buku Teks
Larkin, Mary, author
McGraw-Hill, 2011
Buku Teks
Weitz, Rose, author
Wadsworth and Cengage Learning, 2013
Buku Teks
Helman, Cesil G., 1944-, author
Boston Wright, 1990
Buku Teks