RANGGOLI, Putri Wulandari; ACHMAD, Novianita; KOBANDAHA, Putri Ekawaty. Mathematical Concept Understanding of Middle School Students: An Experimental Study of the Discovery Learning Model. ETDC: Indonesian Journal of Research and Educational Review , [S. l.], v. 4, n. 3, p. 834–844, 2025. DOI: 10.51574/ijrer.v4i3.3305. Disponível em: https://www.etdci.org/journal/ijrer/article/view/3305. Acesso em: 23 aug. 2025.