Stutely, Richard
Guide to Economic sense of economics
The Economist Books, 1992
 Buku Teks
Myers, Danny
Construction economics : a new approach
Taylor and Francis, 2009
 Buku Teks
Bingham, Robert C.
Economics concepts : a Programmed approach
McGraw-Hill, 1987
 Buku Teks SO
Bingham, Robert C.
Economics concepts a programmmed approach
McGraw-Hill, 1975
 Buku Teks SO
Burk, Marguerite C.
Consumption economics : a multidisciplinary approach
John Wiley & Sons, 1968
 Buku Teks