Burger, H. Robert
W.W. Norton & Company, 2006
Buku Teks
Telford, W.M.
Cambridge University Press, 1990
Buku Teks
Parasnis, D.S.
Elsevier , 1973
Buku Teks
Telford, W.M.
Cambridge University Press, 1990
Buku Teks
Parasnis, D.S.
Chapman and Hall, 1997
Buku Teks