JĂșnior, D. M., Dallagnol, M. F., Martins, V. Q., & Freitag, V. C. (2023). Evaluation of E-Commerce Systems: Comparative Study Before and During the COVID-19 Pandemic. Journal of Information Systems and Technology Management, 20, e202320002. https://doi.org/10.4301/S1807-1775202320002