Tikhomirov, A., A. Trufanov, N. Abdu, N. Kinash, R. Umerov, and Z. Umerova. 2014. “DL SYSTEMS IN THE ARAB WORLD: SOME ECONOMIC AND SOCIAL ISSUES”. Journal of Information Technologies in Education (ITE), no. 16 (March):178-83. https://doi.org/10.14308/ite000444.