edited by Edwin H. Gaylord, Charles N. Gaylord
McGraw-Hill, 1968
Buku Referensi
American Society of Civil Engineers, 2018
Majalah, Jurnal, Buletin
Parker, Harry
John Wiley & Sons, 1984
Buku Teks
Dayaratnam, P.
Tata McGraw-Hill, 1983
Buku Teks
White, Richard N.
John Wiley & Sons, 1976
Buku Teks