Vallejo, Claudia. “Comparative Evaluation of the Procedural Development of the I Unit of FS104, before and During the COVID-19 Pandemic”. Revista de la Escuela de Física 10, no. 1 (June 30, 2022): 34–50. Accessed December 6, 2025. https://www.camjol.info/index.php/fisica/article/view/14882.