Fernandes JA, Ferreira Correia P, Roa Guzmán R. ACQUISITION OF COMBINATORIAL OPERATIONS BY PRE-UNIVERSITY STUDENTS BY MEANS OF A TEACHING INTERVENTION. RELIME [Internet]. 2010 May 12 [cited 2026 Oct. 23];13(2):215-42. Available from: https://www.relime.org/index.php/relime/article/view/319