Chutikarn Thanapaiboon. (2009) Causal factors of stress in the workplace of employees at a telecommunication company in two offices :. Language Institute, Thammasat University,:ม.ป.ท.Chutikarn Thanapaiboon. 2009. Causal factors of stress in the workplace of employees at a telecommunication company in two offices :. ม.ป.ท.:Language Institute, Thammasat University,;Chutikarn Thanapaiboon. Causal factors of stress in the workplace of employees at a telecommunication company in two offices :. ม.ป.ท.:Language Institute, Thammasat University, 2009. Print.