Determination of Conceptual Understanding Levels Related to Optics Concepts: The Case of Opticianry. International Journal of Education in Mathematics, Science and Technology, [S. l.], v. 8, n. 1, p. 53–64, 2020. DOI: 10.46328/ijemst.v8i1.728. Disponível em: https://ijemst.com/index.php/ijemst/article/view/448. Acesso em: 29 jun. 2025.