The Asphalt Institute
The Asphalt Institute, 1967
Buku Teks
Dhillon, B.S. (Balbir S.), 1947-, author
CRC Press, Taylor & Francis Group, 2006
Buku Teks
Guitian, Manual
[publisher not identified], [1968]
Buku Teks
Department of Economic Boston University , 1996
Buku Teks
Mezei, Louis M., author
Prentice-Hall, 1989
Buku Referensi