PENINGKATAN HASIL BELAJAR SEJARAH MELALUI PENERAPAN METODE PEMBELAJARAN PROBLEM SOLVING PADA SISWA KELAS XI SMA NEGERI 3 KUPANG. Integrative Perspectives of Social and Science Journal, [S. l.], v. 3, n. 10 Oktober, p. 558–564, 2026. Disponível em: https://ipssj.com/index.php/ojs/article/view/2083. Acesso em: 21 oct. 2026.