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Luu และผู้แต่งคนอื่นๆ. 1995. The effects of exposure to the emission of motor vehicles on blood lead levels and pulmonary functions among employees working on the expressways Bangkok Thailand 1994. Bangkok:Mahidol University;
Luu และผู้แต่งคนอื่นๆ. (1995) The effects of exposure to the emission of motor vehicles on blood lead levels and pulmonary functions among employees working on the expressways Bangkok Thailand 1994 (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Luu และผู้แต่งคนอื่นๆ. The effects of exposure to the emission of motor vehicles on blood lead levels and pulmonary functions among employees working on the expressways Bangkok Thailand 1994. Bangkok:Mahidol University, 1995.
Luu และผู้แต่งคนอื่นๆ. (1995) The effects of exposure to the emission of motor vehicles on blood lead levels and pulmonary functions among employees working on the expressways Bangkok Thailand 1994 (รายงานผลงานวิจัย). Mahidol University:Bangkok.