Lehoangtn
Teacher on TCEF. I'm teaching about telecommunication, switching system, broadband systems, skills, electronics, technology.
Viet Nam lehoangtn.blogspot.com Joined August 2018
No Delegations Found. |
Teacher on TCEF. I'm teaching about telecommunication, switching system, broadband systems, skills, electronics, technology.
Viet Nam lehoangtn.blogspot.com Joined August 2018
No Delegations Found. |