Lemeshko, O. V., Yankovets, O. V., Lemeshko, V. V., Yankovets, A. V., & Basaraba, I. O. (2020). MASSIVE OPEN ONLINE COURSES AS A MEANS OF BORDER GUARDS’ PROFESSIONAL COMPETENCE DEVELOPMENT. Information Technologies and Learning Tools, 75(1), 279–293. https://doi.org/10.33407/itlt.v75i1.2969