DEVELOPMENT AND VALIDATION OF A TWO-TIER FORMAL REASONING TEST INSTRUMENT FOR HIGH SCHOOL STUDENTS ON THE TOPIC OF ROTATIONAL MOTION. Jurnal Luminous: Riset Ilmiah Pendidikan Fisika, [S. l.], v. 7, n. 2, p. 161–170, 2026. DOI: 10.31851/. Disponível em: https://jurnal.univpgri-palembang.ac.id/index.php/luminous/article/view/22098. Acesso em: 24 oct. 2026.