gvh
https://www.mediafire.com/file/i7d0ulnqolwecq3/Prestige_Somerville.pdf/file
https://softwareengineering.stackexchange.com/users/444699/prestige-somerville
https://scholar.google.com/citations?view_op=list_works&hl=vi&user=l10HMxEAAAAJ
https://www.freepik.com/collection?id=6963719
https://community.atlassian.com/t5/user/viewprofilepage/user-id/5507053