Speciale, Raymond C., author
McGraw-Hill, 2006
Buku Teks
Pearson, Michael W., author
Pearson education, 2015
Buku Teks
Blackshaw, Carole
Pitman, 1992
Buku Teks
Lowenfeld, Andreas F.
Matthew Bender and Company,Inc., 1972
Buku Teks
Larsen, Paul B., author
Martinus Nijhoff pub., 2012
Buku Teks