1. 1. Alam, M., Roy, D., Alam, S., Ashrafuzzaman, M., Ahmed Miah, M., Alam, K., … Abdullah, M. (2015). Age-sex Composition of Bangladesh Population. Population Monograph of Bangladesh. Dhaka.
2. 2. American Psychological Association (2020). Stress in America™ 2020: A National Mental Health Crisis.
3. 3. Bangladesh Bureau of Statistics. (2011). Bangladesh population and housing census 2011.
4. 4. Barsade S, Wiesenfeld B, The Marlin Company (1997). Attitudes in the American workplace III. New Haven, CT: Yale University School of Management.
5. 5. BLS (2003). Census of fatal occupational injuries. Washington, DC: U.S. Department of Labor, Bureau of Labor Statistics, Safety and Health Statistics Program. Fatal Injuries.