Berra, M. ., A. . Fikry, and S. . Esseddiki. “The Psychological Impact of COVID-19 on the Healthcare Workers”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 59, no. 2, July 2021, pp. 123-39, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/12877.