?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.egypro.2014.06.006&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=S.A.&rft.au=Sulaiman%2C+S.A.&rft.aulast=Sulaiman&rft.title=Influence+of+dirt+accumulation+on+performance+of+PV+panels&rft.date=2014&rft.issn=18766102&rft.genre=proceeding