1. The land public transport sector in Lebanon: From chaos to sustainable reform and organization;Baaj;J Public Transp,2000
2. Bowlby W, Wayson RL, Stammer RE. Predicting stop-and-go traffic noise levels. NCHRP Report 311. Transportation Research Board, National Research Council, 1989.
3. The variability of simple noise propagation models;Brown,1996
4. Caltrans (California Department of Transportation). Technical Noise Supplement. Environmental division, noise and vibration studies. http://www.dot.ca.gov/hq/env/noise/index.htm#pubs, 1998.
5. Environmental analysis of transportation systems;Cohen,1982