El Alji Y. The Impact of New Technologies “E-Learning” on the Productivity of Companies in a Period of Crisis: Interviewing BPOs During Covid-19 . JARBMA [Internet]. 2021 Nov. 6 [cited 2024 Dec. 25];7(11):19-28. Available from: http://13.234.107.90/index.php/BMA/article/view/1084