Wanliya Ganyarut และผู้แต่งคนอื่นๆ. (2010) Working environment and respiratory problems among employees in 2 garment factories in Ubon Ratchathani province. Chulalongkorn University:ม.ป.ท.Wanliya Ganyarut และผู้แต่งคนอื่นๆ. 2010. Working environment and respiratory problems among employees in 2 garment factories in Ubon Ratchathani province. ม.ป.ท.:Chulalongkorn University;Wanliya Ganyarut และผู้แต่งคนอื่นๆ. Working environment and respiratory problems among employees in 2 garment factories in Ubon Ratchathani province. ม.ป.ท.:Chulalongkorn University, 2010. Print.