1)https://meet-b.birzeit.edu/playback/presentation/2.3/8d9fac24e446ffba254e815a35ba561b35113bc5-1608537880530?meetingId=8d9fac24e446ffba254e815a35ba561b35113bc5-1608537880530


2)https://meet-b.birzeit.edu/playback/presentation/2.3/3be53e41f1ea6e9106bba22eed8a52302acb725b-1608710780088?meetingId=3be53e41f1ea6e9106bba22eed8a52302acb725b-1608710780088


3)https://meet-b.birzeit.edu/playback/presentation/2.3/f36c31ae7f4135c84eb8ed6d8c0231703084b94c-1609574430588?meetingId=f36c31ae7f4135c84eb8ed6d8c0231703084b94c-1609574430588