http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
This book explores answers to these questions by presenting research into how happiness is measured, frameworks for personal behaviors, management techniques that build happiness in the workplace--and warnings that highlight where the happiness hype has been overblown.
Khía cạnh tâm lí,Psychological aspects