?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.au=Kristanto%2C+Heru&rft.aulast=Kristanto&rft.aufirst=Heru&rft.degree=D3+-+Diploma&rft.title=%7BJALUR+ARTIST+%3A+OFFLINE+IT+FREELANCE%7D+PEMBARUAN+DAN+OPTIMALISASI+SISTEM+WEB+E-COMMERCE+%22SLEMANMART%22+DINAS+KOPERASI+DAN+UKM+SLEMAN&rft.date=19+February+2026&rft.inst=Universitas+AMIKOM+Yogyakarta