?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Tonik&rft.au=Purwanto%2C+Tonik&rft.aulast=Purwanto&rft.title=OPTIMASI+KLASTERING+K-MEANS+UNTUK+SEGMENTASI+PELANGGAN+DENGAN+INTEGRASI+PCA%2C+DBSCAN+DAN+KMEANS%2B%2B&rft.date=9+May+2026&rft.degree=S1+-+Sarjana&rft.inst=Universitas+AMIKOM+Yogyakarta