Grob, Bernard, author
Glencoe, 1992
Buku Teks
Grob, Bernard, author
McGraw-Hill , 2003
Buku Teks
Miller, Rex, 1939-2004, author
Mcknight & Mcknigh, 1964
Buku Teks
Patrick, Dale R., author
Prenticel Hall Carreer & Technology, 1990
Buku Teks
Gibilisco, Stan, 1953-, author
McGraw-Hill, 2011
Buku Teks