Director-General of Qatar Leadership Centre, Abdullah bin Mohammed Khalifa al-Binali told Gulf Times that the referendum on constitutional amendments, taking place Tuesday, is an important historical phase for Qatar. "The citizens’ response to the call of His Highness the Amir to participate in this national event reflects the unity and cohesion of society. It also allows all citizens to be part of this historical event that contributes to building a better future for our country, Qatar."