Ð”Ð°Ñ†ÑƒÐ½, Ð. 2016 Nov 25. Ð¤ÐžÐ Ð£ÐœÐ« Ð’ ÐœÐÐ¡Ð¡ÐžÐ’Ð«Ð¥ ÐžÐ¢ÐšÐ Ð«Ð¢Ð«Ð¥ ÐžÐÐ›ÐÐ™Ð ÐšÐ£Ð Ð¡ÐÐ¥. Modern Information Technologies and IT-Education. [Online] 12:3-1