1. A.V. Subbarayalu. Occupational health problems of call center workers in India: A cross sectional study focusing on gender differences. J. Manage Sci & Pract 2013
2. 2(1): 63-70, [cited 2014 January 20]. Available from: http://www.bowenpublishing.com/DownLoadPaper.aspx?paperid=14339.