Peters, Pamela, author
Wm.C. Brown Pub., 1993
Buku Referensi
edited by Byron D. Tapley
John Wiley & Sons, 1990
Buku Referensi
Box, Paul C., author
Institut of Transportation Engineers, 1976
Buku Referensi
American Society of Civil Engineers, 1987
Buku Referensi
Bradley, Elihu F., author
ASM International, 1989
Buku Referensi