Serwery międzynarodowych organizacji drogowych
IRF - International Road Federation
EAPA - European Asphalt Pavement Association
IL Asphalt Pavement Association (USA)
Texas Hot Mix Asphalt Pavement Association (USA)
National Asphalt Pavement Association (USA)
Canadian Technical Asphalt Association (Kanada)
SABITA - Southern Africa Bitumen Association (RPA)
American Concrete Pavements Association (USA)
AASHTO