1. Martec Limited Prevost Car, Intercity Bus Weight Reduction Profram Phase, (2000).
2. C. C. Foo, G. B. Chai and L. K. Seah, A Model to Predict Low-Velocity Impact Response and Damage in Sandwich Composite, Composites Science and Technology, Vol. 68 (2008), 1348–1356.
3. J. S. Kim, S. J. Lee and K. B. Shin, Manufacturing and Structural Safety Evaluation of a Composite Train Carbody, Composite Structures, Vol. 20, No. 9 (2007), 465–476.
4. J. Y. Lee, K. B. Shin and S. J. Lee, A Study on Failure Evaluation if Korean Floor Bus Structure made of Hybrid Sandwich Composite, Korean Society of Automotive Engineers, Vol. 15, No. 6 (2007), 50–61.
5. Pankaj S. Deshmukh, Rollover and Roof Crush Analysis of Low-Floor Mass Transit Bus, Ambedkar Marathwada University (2002).