SIAGIAN, Ruben Cornelius. Modeling Sunspot Activity Variability and Autoregulation in the Period 2000-2018 with Advanced Statistical Approach. MUNISI: Military Mathematics and Natural Sciences, [S. l.], v. 3, n. 2, p. 62–78, 2025. Disponível em: https://jurnal.idu.ac.id/index.php/munisi/article/view/19786. Acesso em: 11 aug. 2026.