Levin, Richard I.
McGraw-Hill International Book Company, 1982
Buku Teks SO
Levin, Richard I.
McGraw-Hill, 1986
Buku Teks SO
Levin, Richard I.
New York, NY, McGraw-Hill
Buku Teks SO
Stevenson, William J.
Irwin , 1992
Buku Teks
Taylor, Bernard W.
Pearson, 2013
Buku Teks SO