American Association of State Highway and Transportation Officials, 1973
Buku Teks
The Association General Office, 1966
Buku Teks
Schoon, J.G.
ASCE , 1993
Buku Teks
The Asphalt Institute
The Asphalt Institute, 1970
Buku Teks
Cogorno, Gene R.
McGraw-Hill, 2011
Buku Teks SO