Wist Thongkum และ Sarawut Thepanondh. (2015) Numberical analysis of volatile organic compounds concentration and evaluation of hazard index in Bangkok Thailang. Mahidol University:ม.ป.ท.Wist Thongkum และ Sarawut Thepanondh. 2015. Numberical analysis of volatile organic compounds concentration and evaluation of hazard index in Bangkok Thailang. ม.ป.ท.:Mahidol University;Wist Thongkum และ Sarawut Thepanondh. Numberical analysis of volatile organic compounds concentration and evaluation of hazard index in Bangkok Thailang. ม.ป.ท.:Mahidol University, 2015. Print.