Kim, DaeHwan http://orcid.org/0000-0001-5851-9436
Funding for this research was provided by:
Dong-A University (20180524)
Article History
First Online: 4 April 2019
Compliance with Ethical Standards
:
: The author declares that there is no conflict of interest.
: This article utilizes a secondary data released to the public by the Korean Employment Information Service.