Sudjai Tolpanichgit. (1997) Working conditions and safety in the workplace of women workers in Bangkok Metropolis. National Institute of Development Administration,:ม.ป.ท.Sudjai Tolpanichgit. 1997. Working conditions and safety in the workplace of women workers in Bangkok Metropolis. ม.ป.ท.:National Institute of Development Administration,;Sudjai Tolpanichgit. Working conditions and safety in the workplace of women workers in Bangkok Metropolis. ม.ป.ท.:National Institute of Development Administration, 1997. Print.