Oscar Orlando Ortiz Corredor, and Lady Alexandra Gelvez Ortega. “GEOMETRIC CONCEPTS OF LOCAL CHANGES AND CUMULATIVE EFFECTS IN BASIC SECONDARY EDUCATION FOR GRADES 8° AND 9°”. DIALÉCTICA 2, no. 31 (October 2, 2026). Accessed October 3, 2026. https://revistas.upel.edu.ve/index.php/dialectica/article/view/6387.