Butko, Olga V. “PECULIARITIES OF THE DEVELOPMENT OF VIRTUAL NOTEBOOKS ON THE SUBJECT «ECONOMICS» FOR PROFILE SCHOOL”. Information Technologies and Learning Tools 54, no. 4 (September 30, 2016): 42–52. Accessed May 3, 2024. https://journal.iitta.gov.ua/index.php/itlt/article/view/1448.