Kolos, Kateryna R., and Oleg M. Spirin. “CONSTATATIONAL STAGE OF EXPERIMENT OF DEVELOPMENT OF COMPUTER-ORIENTED LEARNING ENVIRONMENT OF AN INSTITUTE OF POSTGRADUATE PEDAGOGICAL EDUCATION”. Information Technologies and Learning Tools 54, no. 4 (September 30, 2016): 183–205. Accessed May 3, 2024. https://journal.iitta.gov.ua/index.php/itlt/article/view/1464.