Morales, Armando, Edgardo Locia, Otilio B. Mederos, Melvis Ramírez, and José María Sigarreta. “The Theoretical Didactic Approach to the Counterexample in Mathematics”. INTERNATIONAL JOURNAL OF RESEARCH IN EDUCATION METHODOLOGY 9, no. 1 (January 1, 2019): 1510–1517. Accessed November 22, 2024. https://rajpub.com/index.php/ijrem/article/view/8013.