American Association of State Highway and Transportation Officials, 2008
Buku Referensi
American Association of State Highway and Transportation Officials, 2008
Buku Referensi
Derucher, Kenneth N.
Prentice-Hall, 1981
Buku Teks
Dian Indah Purnama Sari, author
Fakultas Teknik Universitas Indonesia, 2008
UI - Skripsi (Open)
Woods, Kenneth B.
New York: McGraw-Hill, 1960
Buku Teks