1. “Hours worked”, in OECD Factbook 2015–2016: economic, environmental and social statistics;Organization for Economic Co-operation and Development,2016
2. Working time around the world;Lee,2007
3. Workers have reason not to take advantage of the evening [Internet];Gwak,2014
4. Leisure activities in time pressing situation: selection or sacrifice?;Cha;Korea J Popul Stud,2011
5. Health effects of shift work and extended hours of work;Harrington;Occup Environ Med,2001