Rittikorn Sompan และผู้แต่งคนอื่นๆ. (2016) Effects of respirable dust on respiratory symptoms and Pulmonary function among pic farm workers: closed system housing in eastern of Thailand. Mahidol University:ม.ป.ท.Rittikorn Sompan และผู้แต่งคนอื่นๆ. 2016. Effects of respirable dust on respiratory symptoms and Pulmonary function among pic farm workers: closed system housing in eastern of Thailand. ม.ป.ท.:Mahidol University;Rittikorn Sompan และผู้แต่งคนอื่นๆ. Effects of respirable dust on respiratory symptoms and Pulmonary function among pic farm workers: closed system housing in eastern of Thailand. ม.ป.ท.:Mahidol University, 2016. Print.