Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Amaya Yuko,The Impact of Seriousness and Meaningfulness of Ego-experience on Personality and Loneliness,The Japanese Journal of Personality,13488406,Japan Society of Personality Psychology,2009,18,1,46-56,https://cir.nii.ac.jp/crid/1390282680191189120,https://doi.org/10.2132/personality.18.46