Hệ thống mạng mt:
https://docs.google.com/spreadsheets/d/1npbivMxHfzy0kT-bNxyFvV4nY-gHjf8YF6eCG-vnKMo/edit?fbclid=IwAR0Ki3clZ6n0p1vgv57wP1UAqdoZmtV4MnoZaTmqPYMYov5l9oXDmg_9kp4#gid=0
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