1. Asphalt Institute (AI), Eurobitume. 2011. The bitumen industry—a global perspective, production, chemistry, use, specification, and occupational exposure, second edition. No. 230 (IS-230). USA: AI and Eurobitume, pp. 43. Available online at http://www.asphaltinstitute.org/public/IS230_2ndedition.pdf.
2. Asphalt Roofing Manufacturers Association (ARMA), Bitumen Waterproofing Manufacturers Association, National Roofing Contractors Association, and the Roof Coatings Manufacturers Association. 2011. The bitumen roofing industry—a global perspective: production, use, properties, specifications and occupational exposure, second edition. USA: ARMA, pp. 81. Available online at: http://www.bwa-europe.com/A_Global_Perspective_edn2.pdf.
3. Estimation of the dermal carcinogenic activity of petroleum fractions using a modified Ames assay
4. Predicting carcinogenicity of petroleum distillation fractions using a modified Salmonella mutagenicity assay