Bothwell, Al
Jones and Bartlett Pub., 1990
Buku Teks
University Oxford Press , 1984"
Buku Teks
Dept. of Civil Engineering, Vanderbilt University, 1975
Buku Teks
Gallinger, George W., author
Mass. Addison-Wesley , 1987
Buku Teks
Gallinger, George W., author
Massachusetts Addison-Wesley Publishing Co., 1991
Buku Teks