“From Recognition to Logical Deduction: Assessing the Van Hiele Levels of Geometric Thinking Among Students of Diverse Disciplines”. Riemann: Research of Mathematics and Mathematics Education 8, no. 1 (April 19, 2026): 210–230. Accessed May 12, 2026. https://journal.sanagustin.ac.id/index.php/reimann/article/view/145.