LIU, C.-Y. A. The Use of e-Learning Course during the COVID-19: A Systems Thinking Approach. International Journal of Management Excellence (ISSN: 2292-1648), [S. l.], v. 15, n. 1, p. 2157–2160, 2020. DOI: 10.17722/ijme.v15i1.1148. Disponível em: https://techmindresearch.org/index.php/ijme/article/view/1148. Acesso em: 13 oct. 2025.