Piyawan Pasnipat. 2007. Causes of employees' job stress in the workplace : a case study of the employees in Thai Union Manufacturing Co.,Ltd. Bangkok:Thammasat University;
Piyawan Pasnipat. (2007) Causes of employees' job stress in the workplace : a case study of the employees in Thai Union Manufacturing Co.,Ltd (รายงานผลงานวิจัย). Thammasat University:Bangkok.
Piyawan Pasnipat. Causes of employees' job stress in the workplace : a case study of the employees in Thai Union Manufacturing Co.,Ltd. Bangkok:Thammasat University, 2007.
Piyawan Pasnipat. (2007) Causes of employees' job stress in the workplace : a case study of the employees in Thai Union Manufacturing Co.,Ltd (รายงานผลงานวิจัย). Thammasat University:Bangkok.