Memon, Mumtaz Ali, Hiram Ting, Rohani Salleh, Jati Kasuma Ali, and Yusman Yacob. 2016. “Level of Stress and Job Satisfaction Among Call Operators: A Case of Malaysian Telecommunication Sector”. International Review of Management and Marketing 6 (3):442-47. https://econjournals.org.tr/index.php/irmm/article/view/2256.