?url_ver=Z39.88-2004&rft_id=10.1109%2FICCA.2019.8899935&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=A.&rft.au=Raza%2C+A.&rft.aulast=Raza&rft.issn=19483449&rft.isbn=9781728111643&rft.title=An+Empirical+Study+of+User+Support+Tools+in+Open+Source+Software&rft.date=2019&rft.genre=proceeding