The Effect of Instrumental Enrichment in the Acquisition of Geographical Concepts for First Grade Student in Intermediate school . Journal Of Educational and Psychological Researches, [S. l.], v. 12, n. 44, p. 99–131, 2015. Disponível em: https://jperc.uobaghdad.edu.iq/index.php/jperc/article/view/440. Acesso em: 6 may. 2025.