The Center of Unified Arab Index opened here on Tuesday evening the knowledge portal of the Sultanate of Oman which is the sixth one in a series of portals of the libraries of countries within the framework of the project of the index gifted by the Custodian of the Two Holy Mosques King Abdullah bin Abdulaziz Al Saud to the Arab culture to support Arab infrastructure programs in the field of libraries and information. Prince Timor Al Said, Vice Rector of Sultan Qaboos University, who patronized the inauguration ceremony, said that the portal enhances aspects of joint cooperation between the Kingdom Saudi Arabia and the Sultanate of Oman.