VIETNAM MOBILE DAY 2021 – ONLINE EVENT - DAY 01 25/08/2021
https://www.youtube.com/watch?v=WsTYul98Mhg
VIETNAM MOBILE DAY 2021 | ONLINE EVENT - DAY 02 26/08/2021
https://www.youtube.com/watch?v=2AXeHV9AtPU
VIETNAM MOBILE DAY 2021 | ONLINE EVENT - DAY 03 27/08/2021