Zadorozhna, Natalia T., Tetyana V. Kuznetsova, and Tetiana R. Sotnykova. “PRINCIPLES OF INTERNET TECHNOLOGIES AS BASIS OF UNIFIED EDUCATIONAL ENVIRONMENT FORMATION”. Information Technologies and Learning Tools 4, no. 3 (August 25, 2010). Accessed April 28, 2024. https://journal.iitta.gov.ua/index.php/itlt/article/view/156.