Parinya Mungkung. (2000) Knowledge and practice on air pollution and noise pollution in Bangkok : a case study of sub-inspector traffic polices in Metropolitan Police Bureau. Mahidol University,:ม.ป.ท.Parinya Mungkung. 2000. Knowledge and practice on air pollution and noise pollution in Bangkok : a case study of sub-inspector traffic polices in Metropolitan Police Bureau. ม.ป.ท.:Mahidol University,;Parinya Mungkung. Knowledge and practice on air pollution and noise pollution in Bangkok : a case study of sub-inspector traffic polices in Metropolitan Police Bureau. ม.ป.ท.:Mahidol University, 2000. Print.