FONSECA, M.; HURTADO MÁRQUEZ, A.. A Broom to Sweep some Pre-concepts and Introduce the Torque Concept. Revista Cubana de Física, [S.l.], v. 24, n. 1, p. 69-71, june 2007. ISSN 2224-7939. Available at: <https://revistacubanadefisica.org/index.php/rcf/article/view/RCF_24_1_69>. Date accessed: 27 sep. 2022.