Tunsaringkasrn, T.; Ketkaew, P.; Zapaung, K.; Rugsiyothin, A.; Taneepanichkul, S. Risk Ratio of Benzene, Toluene, Ethylbenzene, and Xylene (BTEX) Exposures and Their Relations to Biological Parameters of Gasoline Workers in Bangkok, Thailand. App. Envi. Res. 2013, 33, 27-38.