SHER ALAM KHAN; GIORGIO POLETTI; MAZHAR ALAM; FAROOQ NAWAZ KHAN; JANNETH TREJO-QUINTANA; DANIEL MARA; ELENA-LUCIA MARA. GeoGebra and Students’ Conceptual Understanding of Mathematical Representations: A Quasi-Experimental Study in Upper Primary Classrooms. International Journal of Computer Information Systems and Industrial Management Applications, [S. l.], v. 18, n. 4s, p. 1428–1438, 2026. DOI: 10.70917/ijcisim-2026-5784. Disponível em: https://cspub-ijcisim.org/index.php/ijcisim/article/view/5784. Acesso em: 12 nov. 2026.