Kececioglu, Dimitri, author
Prentice-Hall, 1991
Buku Referensi
King, Reno C., author
McGraw-Hill, 1967
Buku Referensi
Box, Paul C., author
Institut of Transportation Engineers, 1976
Buku Referensi
Peters, Pamela, author
Wm.C. Brown Pub., 1993
Buku Referensi
Smeaton, Robert W.
McGraw-Hill, 1969
Buku Referensi