Tikhomirov, A., Trufanov, A., Abdu, N., Kinash, N., Umerov, R., & Umerova, Z. (2014). DL SYSTEMS IN THE ARAB WORLD: SOME ECONOMIC AND SOCIAL ISSUES. Journal of Information Technologies in Education (ITE), (16), 178–183. https://doi.org/10.14308/ite000444