SOW, C. H.; UDALAGAMA, C. N. B. Teaching Crystal Structures using a Transparent Box with Tennis Balls. Asian Journal of the Scholarship of Teaching and Learning, [S. l.], v. 3, n. 1, p. 18–33, 2013. DOI: 10.24112/ajsotl.33277. Disponível em: https://ejournals.lib.hkbu.edu.hk/index.php/AJSoTL/article/view/3277. Acesso em: 23 jun. 2026.