Ostrowski, Christopher
McGraw-HIll, 2005
Buku Teks
Curtice, Robert M.
Van Nostrand Reinhold, 1982
Buku Teks
Hubbard, George U.
Van Nostrand Reinhold, 1981
Buku Referensi
Rob, Peter
Course Technology, 2002
Buku Teks
Rob, Peter
Wadsworth, 1993
Buku Teks