RUSTAMAN; UTAMA, R. Analisis Periode Rotasi Matahari Berdasarkan Pergerakan Bintik Matahari AR 4207 pada Citra SolarHam Tanggal 1–8 September 2025. JURNAL ARMADA PENDIDIKAN, [S. l.], v. 4, n. 1, 2026. DOI: 10.60041/jap.v4i1.333. Disponível em: https://kilaupublishing.com/index.php/jap/article/view/333. Acesso em: 4 feb. 2026.