SIAGIAN, Ruben Cornelius; ALFARIS, Lulut; AHMAD, Ghulab Nabi; LAEIQ, Nazish; MUHAMMAD, Aldi Cahya; NYUSWANTORO, Ukta Indra; NASUTION, Budiman. Relationship between Solar Flux and Sunspot Activity Using Several Regression Models. JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS, [S. l.], v. 15, n. 2, p. 146–165, 2023. DOI: 10.25077/jif.15.2.146-165.2023. Disponível em: https://jif.fmipa.unand.ac.id/index.php/jif/article/view/553. Acesso em: 5 mar. 2026.