Situation of higher education students in time of COVID-19. Journal on studies and research of academic knowledge, Itapúa, PY, n. 14, p. 82–86, 2021. DOI: 10.70833/rseisa14item277. Disponível em: https://revistas.uni.edu.py/index.php/rseisa/article/view/277. Acesso em: 21 oct. 2025.