SIAGIAN, R. C.; ALFARIS, L. .; AHMAD, G. N. .; LAEIQ, N. .; MUHAMMAD, A. C. .; NYUSWANTORO, U. I. .; NASUTION, B. . Relationship between Solar Flux and Sunspot Activity Using Several Regression Models. JURNAL ILMU FISIKA, [S. l.], v. 15, n. 2, p. 146–165, 2023. DOI: 10.25077/jif.15.2.146-165.2023. Disponível em: http://jif.fmipa.unand.ac.id/index.php/jif/article/view/553. Acesso em: 10 may. 2024.