“ANALYSIS OF STUDENTS’ MATHEMATICAL CRITICAL THINKING ABILITY IN MIDDLE SCHOOL ON FLAT-SIDED SOLID GEOMETRY MATERIAL” (2026) JOURNAL GEMARIMATIKA, 1(1), pp. 42–51. Available at: https://journal.uniqhba.ac.id/index.php/gemarimatika/article/view/1399 (Accessed: 14 September 2026).