?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Firstyan+Deviena+Citra+Rahayu&rft.aufirst=Rahayu(2026)&rft.au=Firstyan+Deviena+Citra+Rahayu%2C+Rahayu(2026)&rft.title=CAUCHY%E2%80%93+Jurnal+Matematika+Murni+dan+Aplikasi&rft.issn=2477-3344&rft.volume=10&rft.atitle=Spatial-Temporal+Modeling+of+Regional+Sales+Using+Generalized+Space+Time+Autoregressive+(GSTAR)%3A+Spillover+Effect+Analysis&rft.pages=1372-1387&rft.issue=2&rft.genre=article