Coulmas, Florian, author
Blackwell Publishers, 1998
Buku Teks
Stiles, Karl A., author
McGraw-Hill, 1968
Buku Referensi
edited by Earl Logan, Jr.
Marcel Dekker, Inc., 1994
Buku Referensi
Asphalt Institute
The Asphalt Institute, 1965
Buku Referensi
ASM International
ASM International, 1992
Buku Referensi