Wurtzebach, Charles H.
John Wiley & Sons, 1995
Buku Teks
Arnold, Alvin L.
Warren, Gorham & Lamnont, 1981
Buku Teks
Shenkel, William M., author
Business Publications , 1980
Buku Teks
Schmitz, Adrienne, author
Urban Land Institute, 2001
Buku Teks
Randel, Jim, author
Facts on File Publications, 1986
Buku Teks