FATMAWATI, Nia; SATI, Sati; WIDIAWATI, Hema. The Use of Counting Box Teaching Aids to Improve Mathematical Concept Understanding of First Grade Students at SD Negeri 1 Lemahabang. Journal of Educational Sciences, [S. l.], v. 10, n. 5, p. 983–992, 2026. DOI: 10.31258/jes.10.5.p.983-992. Disponível em: https://jes.ejournal.unri.ac.id/index.php/JES/article/view/1045. Acesso em: 24 sep. 2026.