El Alji, Y. (2021). The Impact of New Technologies “E-Learning” on the Productivity of Companies in a Period of Crisis: Interviewing BPOs During Covid-19 . Journal of Advance Research in Business, Management and Accounting (ISSN: 2456-3544), 7(11), 19-28. https://doi.org/10.53555/nnbma.v7i11.1084