Asphalt Institute
Asphalt Institute, 1979
Buku Referensi
Alexander, Renee R.
Wiley-Liss, 1992
Buku Teks
Lorie, James H.
NMcGraw-Hill , 1951
Buku Teks
Powell, Ronald R.
Libraries Unlimited, Inc., 2004
Buku Teks
Powell, Ronald R.
Greenwich Ablex Publishing Corporation , 1999
Buku Teks