The origin of contention idea is proportional to the historical backdrop
of mankind. The event of contentions in each condition in which
human is available appears to us as ordinary. The subject of the
contention, particularly beginning from 1970's has been the focal point
of fascination of authoritative life especially in the USA and the world.
Indeed, one of the outcomes that makes individuals pitiful and the
other one that causes workforce misfortunes and time loss of the
associations has prompted nations to set up associations and has driven
the associations to go to effectively to preparing so as to limit these
issues (Dağlı & Sığrı, 2014)
