1)https://meet-b.birzeit.edu/playback/presentation/2.3/24c1a0544935cd1c9bec01b22377a697e6083894-1607500917939?meetingId=24c1a0544935cd1c9bec01b22377a697e6083894-1607500917939


2)https://meet-b.birzeit.edu/playback/presentation/2.3/77b333bde4afd2cd65bb0bec32d4584ba36b1b70-1607760153970?meetingId=77b333bde4afd2cd65bb0bec32d4584ba36b1b70-1607760153970


3)https://meet-b.birzeit.edu/playback/presentation/2.3/3fc29666ecf14492b5bc2bf0a25d23505653a3a6-1608105893475?meetingId=3fc29666ecf14492b5bc2bf0a25d23505653a3a6-1608105893475