Francis Peter S.J.
Tata McGraw-Hill, 2012
Buku Teks
Arnold, Elizabeth C., author
Elsevier Saunder, 2011
Buku Teks
Arnold, Elizabeth C., author
Saunders Elsevier, 2007
Buku Teks
Norton, Barbara A.
Appleton-Century-Crofts , 1986
Buku Teks
Matthews, Candace
Prentice Hall Regents, 1990
Buku Teks