O`Neill, Peter, author
Champman & Hall, 1993
Buku Teks
Montgomery, Carla W., author
McGraw-Hill, 2003
Buku Teks
Kubasek, Nancy K., author
Pearson - Prentice Hall, 2005
Buku Teks
by Philip E. LaMoreaux ... [and others]
CRC Press, Taylor & Francis Group, 2009
Buku Teks
Arms, Karen, author
Saunders College Publishing, 1990
Buku Teks