Dear Participants
OPUS International Society Research Congress, which was planned to be held in Poland-Warsaw on 21-22-23 June 2019, was postponed to October 2019 due to operational reasons.
Our respect,
OPUS International Society Research Congress, which was planned to be held in Poland-Warsaw on 21-22-23 June 2019, was postponed to October 2019 due to operational reasons.
Our respect,